Mare Fen
Station Road between Swavesey and Over · Flooding grassland, ditches and ponds
the ai birderBirding near me The AI Birder · one-page field sheet
Cambridgeshire, England · CB24 4RB · CB24 4RB
Kingfisher · Bittern · Great Crested Grebe · Mute Swan · Teal · Lapwing
Moore Lake Hide — Coucher Hide in county reports · Elney Lake — mapped public lakeside outlooks · Holywell Lake — mapped public trail outlooks · Ferry Lagoon — western public viewing shelter · Ferry Lagoon — eastern public viewing shelter · Ferry Pond — northern mapped public outlook · Ferry Mere — seasonal public viewpoint · Ferry Lagoon Trail — southern hedgerow section · Oxholme Lake — mapped public outlook · Far Fen Lake — mapped public outlook
Check current access, hide closures and operator notices before travelling. Seasonal birds are possibilities, not promised sightings. Keep to authorised routes and give wildlife space.
Opening and charges checked 2026-10-18. Operator: https://www.rspb.org.uk/days-out/reserves/fen-drayton-lakes
Full guide and current source links: https://aibirder.co.uk/reserves/rspb-fen-drayton-lakes
EN 36 · RSPB reserve guide

Cambridgeshire, England · CB24 4RB
Winter ducks, grebe courtship and summer Hobbies around former gravel workings.
Decide if the visit fits.
Last checked 18 October 2026.
Opening and charges information · checked .
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Reserve overview
Winter ducks, grebe courtship and summer Hobbies around former gravel workings.
Eight checks for a smoother visit.
Conditions change: check the operator and transport notices before travelling.
January: January usually suits a sheltered-viewpoint plan around Ferry Lagoon for Goldeneye, Teal and Lapwing. The seasonal Ferry Mere viewpoint is usable only if signs permit. Holywell Lake can add Bittern interest from public outlooks, but do not enter reeds or follow a historical report towards a hidden resting bird.
February: In February, scan Ferry Lagoon for winter Teal and Black-tailed Godwit, then try the Elney Loop public outlooks for Kingfisher or Great Crested Grebe. Check the forecast and flood notices before deciding the full distance. A well-established mapped path can still be impassable when the Great Ouse floodplain is inundated.
March: March typically brings more Great Crested Grebe activity from the Elney Lake outlooks while winter Goldeneye may remain on larger water. Use the western Ferry Lagoon shelter for a separate wader scan. The reserve is open around the clock, but vehicle access is dawn–dusk, so plan a legal arrival and return.
April: April usually adds returning Swallow over Holywell Lake and Common Tern activity at Moore Lake. Use the public hide for Oystercatcher and Lapwing on the islands without approaching breeding habitat. Cuckoo typically returns later in spring;the wooded Elney Loop offers a listening position without searching private ground or reedbeds.
May: May is our choice for a mixed wetland circuit: Common Tern from Moore LakeHide, Great Crested Grebe from Elney Lake outlooks and Cuckoo heard from established wooded paths. Bullfinch is worth listening for along the mapped southern Ferry Lagoon hedgerow. Keep the route flexible enough to allow a long stationary watch.
June: In June, watch Common Tern, Lapwing and Oystercatcher from Moore LakeHide, then try Holywell’s public trail for Swallow and Swift feeding overhead. The islands are watched from a distance, not visited. If the seasonal Ferry Mere path is open, it adds a broad marsh view without permission to cross feeding areas.
July: July usually combines Common Tern at Moore Lake with the first return-passage Common Sandpiper or Green Sandpiper using shallow margins. Great White Egret and Cattle Egret are supported by actual county records, but no daily presence is promised. Use a scope from the hide rather than walking around the shore to move birds.
August: August typically makes Moore LakeHide and the seasonal Ferry Mere viewpoint useful for feeding egrets and passing waders. Actual August 2026 county reports locate Common Sandpiper, Green Sandpiper and Great White Egret at Moore Lake, and Cattle Egret at Ferry Mere. Let current conditions decide whether those public places are accessible and productive on your visit.
September: September usually rewards a careful Moore Lake scan for Common Sandpiper, Green Sandpiper or Great White Egret, with returning Teal on Ferry Lagoon. Watch from existing public facilities and give ordinary birds time. Rare sandpipers in county news are evidence of past passage, not a regular-target promise for every September trip.
October: In October, use the public Ferry Lagoon shelters for Teal, Lapwing and Black-tailed Godwit, then listen for Bullfinch along the southern hedgerow section. Great Crested Grebe remains a lake possibility. Wet grass and shorter daylight can slow a circuit;choose one manageable loop rather than trying to cover every waterbody.
November: November usually favours winter waterbird study from the lagoon shelters: Teal and Goldeneye on water, and Lapwing along suitable margins. Holywell Lake may add Bittern from a public outlook. A high water level can remove visible feeding mud and close paths, so keep the route responsive to actual signs.
December: December is a good month for a short Holywell Trail outing followed by a Ferry Lagoon scan for Teal, Goldeneye and Lapwing. The hide on Moore Lake offers another sheltered watch if its approach is open. Keep the carpark’s dawn–dusk timetable separate from the reserve’s 24-hour listing and carry provisions.
Best conditions: Choose clear visibility and modest wind for scanning the larger lagoons; a scope makes distant winter ducks and waders much easier to compare. Binoculars suit Elney’s wooded bays and southern hedgerow birds. The map’s public shelters provide options for different wind directions, but none justifies continuing through flooding. Paths combine gravel, hard surface and grass, so take waterproof footwear and shorten the circuit after rain. Carry food and water because there is no staffed visitor centre or cafe.
Prices and access checked 18 October 2026: the charges page lists free adult and child admission, £2 non-member car parking and free parking for RSPB members and Blue Badge holders. Reserve, parking and toilet access times are listed separately below; plan the return before vehicle access ends. PayByPhone location 808281 is the payment method specified on the main and facilities pages, using an app or phone. They explicitly say neither cash nor card payment is accepted. The generic charges-page instruction to pay at a visitor centre conflicts with the facilities page, which says there is no visitor centre and no on-site staff. Follow the reserve-specific phone payment instructions. Check the RSPB notices before travelling, particularly following prolonged rain or when planning a seasonal trail extension.
Access times: Reserve: Current RSPB calendar lists open 24 hours; routes and seasonalFerry Mere viewpoint depend on flooding and signs. · Hides: One enclosedMoore LakeHide, 5 screens and 3 open viewing shelters. No separate locked-hide timetable verified. Ferry Mere viewpoint seasonal, not always open. · Car park: Dawn–dusk per current calendar; accessible portaloo also dawn–dusk. Parking payment by app/phone only, not cash/card. · Dawn access: partly. Operator opening information.
The RSPB offers three marked walks through a network of lakes, hedges and riverside habitats. Holywell Short Trail is one mile, Ferry Lagoon Trail 2.5 miles and Elney Loop three miles. The distances give a useful sense of commitment, but allow considerably more time than a normal exercise walk if you intend to identify ducks or wait for a hunting Hobby. Holywell is a good introduction when time is short, offering several different waterside views without committing to the largest circuit. Ferry Lagoon takes you around the largest lagoon, with open shelters and a view towards the muddy edges of Ferry Mere. The seasonal viewpoint is available only when conditions permit. Elney Loop passes wooded and hedged stretches and provides the approach to Moore Lake hide. The facilities page counts five screens, three open shelters and one hide across the reserve; do not expect each stop to offer the same shelter from weather. Two-hour plan — our suggestion: arrive by the Busway or main car park, choose Holywell Short Trail and stop at the most promising water views. Spend some time simply following the movements of a group of ducks, then check the sky and reed edges before returning. A short loop with settled watching is preferable to walking most of the visit and leaving no time at the water. Full-day plan — our suggestion: start with Ferry Lagoon while the morning light is favourable, pausing at the shelters and checking Ferry Mere if its approach is available. Take a picnic break, then choose Elney Loop for a contrasting afternoon along the wooded margins and Moore Lake. Keep your return route in mind where the trails meet the Busway. Save a final scan for the lake that held the most active birds earlier. Stay behind the screens and on the marked paths, giving island-nesting birds and waterside flocks space. Keep the guided-bus track separate from the walking network: cross only at the proper crossing points. A bicycle journey can bring you here conveniently, but a slower walk is usually better for hearing birds hidden in the hedges.
Use the linked reserve map and directions with current access notices. Species are typical seasonal targets. Light and telescope advice reflects our choice of viewpoint.
Moore Lake islands and shallow margins
The single current operator-listed enclosed hide. Dogs excluded except assistance dogs; county2026 reports call it Coucher Hide.
Winter: Teal, Great White Egret
Spring: Common Tern, Lapwing, Oystercatcher
Summer: Common Tern, Common Sandpiper, Green Sandpiper
Autumn: Common Sandpiper, Green Sandpiper, Great White Egret
Light: either. Scope: useful.
Wooded bays and open water around Elney Lake
Use the official Elney Loop and its mapped outlooks; gravel and grass can be muddy. Not every anonymous outlook has an operator-published name.
Winter: Bittern, Goldeneye, Kingfisher
Spring: Great Crested Grebe, Cuckoo, Kingfisher
Summer: Great Crested Grebe, Kingfisher, Cuckoo
Autumn: Kingfisher, Great Crested Grebe
Light: either. Scope: useful.
The lake, reedbed margins and open sky
Use the Holywell Short Trail and existing outlooks, respecting gates and any flood closure.
Winter: Bittern, Goldeneye
Spring: Great Crested Grebe, Swallow
Summer: Swallow, Swift
Autumn: Great Crested Grebe, Mute Swan
Light: either. Scope: useful.
Largest lagoon and feeding margins
Actual shelter marker beside public Ferry LagoonTrail; wording describes its map position, not an invented official proper name.
Winter: Teal, Lapwing, Black-tailed Godwit, Marsh Harrier
Spring: Lapwing, Grey Heron, Hobby, Marsh Harrier
Summer: Grey Heron, Great White Egret, Hobby, Marsh Harrier
Autumn: Lapwing, Black-tailed Godwit, Teal, Hobby, Marsh Harrier
Light: either. Scope: essential.
Open water and eastern lagoon margins
Use the official lagoon circuit. Path surfaces include grass and can flood; no wading or shortcut to the water edge.
Winter: Teal, Lapwing, Goldeneye
Spring: Great Crested Grebe, Grey Heron
Summer: Great Crested Grebe, Great White Egret
Autumn: Teal, Lapwing
Light: either. Scope: essential.
Ferry Pond water and the Great Ouse-side wetland
Map-defined outlook on the public lagoon route; obey signs if the river floodplain is inundated.
Winter: Teal, Grey Heron
Spring: Grey Heron, Mute Swan
Summer: Grey Heron, Mute Swan
Autumn: Teal, Grey Heron
Light: either. Scope: useful.
Shallow scrapes and muddy margins
Only open when conditions permit. Dogs excluded except assistance dogs. A seasonal map line is not confirmation of access on your date.
Winter: Lapwing, Teal, Black-tailed Godwit
Spring: Lapwing, Grey Heron
Summer: Cattle Egret, Great White Egret
Autumn: Cattle Egret, Black-tailed Godwit
Light: either. Scope: essential.
Scrub and hedges beside the official trail
Official map explicitly recommends listening for Bullfinch and warblers here. No off-trail search through scrub.
Winter: Bullfinch
Spring: Bullfinch, Cuckoo
Summer: Bullfinch, Cuckoo
Autumn: Bullfinch
Light: either. Scope: not needed.
Open water and reed-fringed bays
Mapped viewpoint by public paths south of the busway. Cross only at signed crossings and observe approach conditions.
Winter: Goldeneye, Great Crested Grebe, Mute Swan
Spring: Great Crested Grebe, Mute Swan
Summer: Great Crested Grebe, Mute Swan
Autumn: Great Crested Grebe, Mute Swan
Light: either. Scope: useful.
South-eastern lake water and surrounding wetland
Use official marked access; no assumed link across flooded grass or an unauthorised lakeshore route.
Winter: Goldeneye, Great Crested Grebe, Mute Swan
Spring: Great Crested Grebe, Mute Swan
Summer: Great Crested Grebe, Mute Swan
Autumn: Great Crested Grebe, Mute Swan
Light: either. Scope: useful.
| Spot | Overlooks | Key species by season | Best light | Scope | Tide |
|---|---|---|---|---|---|
| Moore Lake Hide — Coucher Hide in county reportsThe single current operator-listed enclosed hide. Dogs excluded except assistance dogs; county2026 reports call it Coucher Hide. | Moore Lake islands and shallow margins | Winter: Teal, Great White Egret Spring: Common Tern, Lapwing, Oystercatcher Summer: Common Tern, Common Sandpiper, Green Sandpiper Autumn: Common Sandpiper, Green Sandpiper, Great White Egret | either | useful | — |
| Elney Lake — mapped public lakeside outlooksUse the official Elney Loop and its mapped outlooks; gravel and grass can be muddy. Not every anonymous outlook has an operator-published name. | Wooded bays and open water around Elney Lake | Winter: Bittern, Goldeneye, Kingfisher Spring: Great Crested Grebe, Cuckoo, Kingfisher Summer: Great Crested Grebe, Kingfisher, Cuckoo Autumn: Kingfisher, Great Crested Grebe | either | useful | — |
| Holywell Lake — mapped public trail outlooksUse the Holywell Short Trail and existing outlooks, respecting gates and any flood closure. | The lake, reedbed margins and open sky | Winter: Bittern, Goldeneye Spring: Great Crested Grebe, Swallow Summer: Swallow, Swift Autumn: Great Crested Grebe, Mute Swan | either | useful | — |
| Ferry Lagoon — western public viewing shelterActual shelter marker beside public Ferry LagoonTrail; wording describes its map position, not an invented official proper name. | Largest lagoon and feeding margins | Winter: Teal, Lapwing, Black-tailed Godwit, Marsh Harrier Spring: Lapwing, Grey Heron, Hobby, Marsh Harrier Summer: Grey Heron, Great White Egret, Hobby, Marsh Harrier Autumn: Lapwing, Black-tailed Godwit, Teal, Hobby, Marsh Harrier | either | essential | — |
| Ferry Lagoon — eastern public viewing shelterUse the official lagoon circuit. Path surfaces include grass and can flood; no wading or shortcut to the water edge. | Open water and eastern lagoon margins | Winter: Teal, Lapwing, Goldeneye Spring: Great Crested Grebe, Grey Heron Summer: Great Crested Grebe, Great White Egret Autumn: Teal, Lapwing | either | essential | — |
| Ferry Pond — northern mapped public outlookMap-defined outlook on the public lagoon route; obey signs if the river floodplain is inundated. | Ferry Pond water and the Great Ouse-side wetland | Winter: Teal, Grey Heron Spring: Grey Heron, Mute Swan Summer: Grey Heron, Mute Swan Autumn: Teal, Grey Heron | either | useful | — |
| Ferry Mere — seasonal public viewpointOnly open when conditions permit. Dogs excluded except assistance dogs. A seasonal map line is not confirmation of access on your date. | Shallow scrapes and muddy margins | Winter: Lapwing, Teal, Black-tailed Godwit Spring: Lapwing, Grey Heron Summer: Cattle Egret, Great White Egret Autumn: Cattle Egret, Black-tailed Godwit | either | essential | — |
| Ferry Lagoon Trail — southern hedgerow sectionOfficial map explicitly recommends listening for Bullfinch and warblers here. No off-trail search through scrub. | Scrub and hedges beside the official trail | Winter: Bullfinch Spring: Bullfinch, Cuckoo Summer: Bullfinch, Cuckoo Autumn: Bullfinch | either | not needed | — |
| Oxholme Lake — mapped public outlookMapped viewpoint by public paths south of the busway. Cross only at signed crossings and observe approach conditions. | Open water and reed-fringed bays | Winter: Goldeneye, Great Crested Grebe, Mute Swan Spring: Great Crested Grebe, Mute Swan Summer: Great Crested Grebe, Mute Swan Autumn: Great Crested Grebe, Mute Swan | either | useful | — |
| Far Fen Lake — mapped public outlookUse official marked access; no assumed link across flooded grass or an unauthorised lakeshore route. | South-eastern lake water and surrounding wetland | Winter: Goldeneye, Great Crested Grebe, Mute Swan Spring: Great Crested Grebe, Mute Swan Summer: Great Crested Grebe, Mute Swan Autumn: Great Crested Grebe, Mute Swan | either | useful | — |
Month chips show typical presence or our preferred viewing season. Choose birds that suit the time of your visit.
The RSPB asks visitors with access requirements to contact the reserve before travelling. Its description is of mostly flat routes with some gentle slopes, using a mixture of hard surfaces, rolled gravel and grass. Flat land alone does not make every circuit suitable for every chair or walking aid, especially once a grassy section becomes wet. Kissing gates and bridle gates occur on some routes, so discuss the particular walk you want rather than relying on a general impression of a fenland landscape. The rolled-gravel car park has one Blue Badge space, no formal drop-off point and no lighting. An accessible portable toilet is provided there. Near the central welcome area, a level, contrasting road crossing leads towards a lake-edge platform and picnic area. Tables with wheelchair spaces stand on firm, level ground approached by a gently sloping hardened path. These central facilities may offer a more manageable outing than a complete lake circuit. Ask specifically about current ground conditions, gate use and the approach to a chosen screen or hide if these affect your visit. A turnaround point agreed in advance is useful when energy or battery capacity limits the day. Carry what you need for a waterside pause, since reaching an open shelter does not necessarily provide protection from wind blowing across the lake.
Bring your own lunch and drinks: there is no café here. Picnic provision includes an area south of Ferry Lagoon, a table near the Busway shelter and sheltered seating in the car park. Interpretation panels help explain the landscape without a staffed welcome desk. There are no baby-changing facilities; the RSPB directs visitors needing those facilities or further refreshments to Cambridge Services. Pack suitable footwear and weather protection for an outdoor day. Barbecues are prohibited because of the risk to the wetland and its visitors.
Dogs can use the public footpaths, bridleways and most designated reserve routes. Moore Lake hide and the approach to the seasonal Ferry Mere viewpoint are dog-free, except for assistance dogs, which are welcome throughout. Plan your circuit accordingly, keep your dog close and do not let it enter the water or disturb birds resting beside a path.
The Guided Busway provides an unusually direct car-free approach, with a request stop at Fen Drayton Lakes. Tell the driver that you want that stop when boarding. Cambridgeshire County Council’s Busway information lists the A and B services and links to their current arrangements; Stagecoach operates the Busway. Use its journey planner to confirm a journey that actually calls at the reserve, particularly when connecting from a railway station. The RSPB names Cambridge and Huntingdon as rail connections for the guided bus. Allow time to reach the relevant bus stop and check the final return journey before choosing a long circuit. The council’s linked combined timetable PDF returned an error during this review, so no exact frequency or departure time is promised here. National Cycle Route 51 crosses the reserve, with racks near the Busway stop. Drivers should use the RSPB’s brown-signposted approach and the main car park rather than a waterside track suggested as a shortcut by navigation software. The separate St Ives, Huntingdon and Cambridge stay estimates below are road journeys, even though the bus can be a more convenient choice for the visit itself.
Useful bases for an early start.
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About 7.0 miles by road, roughly 18 minutes’ drive; OSRM estimate measured 18 October 2026, without live traffic.
Measured driving route · 2026-10-18. Map estimates exclude live traffic.
A town base beside the Great Ouse, with a separate journey to the reserve entrance.Find places to stay in St Ives on Booking.comThe OSRM road estimate is about 8.6 miles with a driving time of roughly 17 minutes, measured 18 October 2026 without live traffic.
Measured driving route · 2026-10-18. Map estimates exclude live traffic.
Rail connections and a base for exploring more of the river valley.Find places to stay in Huntingdon on Booking.comAbout 16.7 miles by road, roughly 29 minutes’ drive; OSRM estimate measured 18 October 2026, without live traffic.
Measured driving route · 2026-10-18. Map estimates exclude live traffic.
A city stay with a wider choice of rail connections and places to eat.Find places to stay in Cambridge on Booking.comExplore Cambridgeshire’s full guides and smaller birding sites
For reserve advice contact fendraytonlakes@rspb.org.uk or 01954 233260. The operator gives the address as Fen Drayton Lakes, Fen Drayton Road, Cambridge, Cambridgeshire, CB24 4RB. Include your date, intended arrival point and proposed trail if you need help deciding whether the route suits your group. The RSPB map is worth saving before setting out, especially for distinguishing Moore Lake, Holywell and the Ferry Lagoon circuit. A question about a particular gate or surface is more useful than a broad request about the whole site.
Check Cambridgeshire Bird Club — What’s About county bird news. most days; news reports, not accepted annual records Reports show what has been seen, not what will be.
Follow the BTO Birders’ Code and give wildlife space.
RSPB Fen Drayton Lakes: Free entry; non-member parking £2; members and Blue Badge holders free.
RSPB Fen Drayton Lakes: Dogs can use the public footpaths, bridleways and most designated reserve routes.
RSPB Fen Drayton Lakes: Winter wildfowl · spring grebes · summer Hobbies.
RSPB Fen Drayton Lakes: An accessible portable toilet is provided there.
RSPB Fen Drayton Lakes: The Guided Busway provides an unusually direct car-free approach, with a request stop at Fen Drayton Lakes.
Shorter stops within 15 miles in a straight line. Use the operator’s arrival directions for the journey.
Station Road between Swavesey and Over · Flooding grassland, ditches and ponds
Church-lane approach, Knapwell · Elm woodland and old oak trees
Earith · Reedbeds, open water and wet grassland
Cow Lane, northeast of Godmanchester · Former gravel lakes, grassland, hedges and reedbeds
Station Approach and lake entrance, Somersham · Lake, former railway land, woodland and grassland
Cambourne country park · Meadows, wetland lakes and woodland
Highfields Caldecote approach, west of Cambridge · Ancient coppiced woodland
Cockfen Lane, Landbeach · Grazed meadow, hedgerows, ponds and plantation woodland
B1049, Wilburton near Ely · Small wet woodland with former fishponds
Upwood village, near Ramsey · Traditional clay meadows, hedges and dew ponds
Brampton Road, west of Brampton · Ancient mixed woodland and coppiced rides
Laxton Way and Discovery Way, Cambridge · Grassland, scrub and two small ponds
Logan’s Way and Riverside footbridge, Cambridge · Riverbank, reedbed, backwaters and wet woodland
Oyster Row and Riverside, Cambridge · Riverside floodplain, chalk brook and grassland
Owlstone Road and Lammas Land, Cambridge · Wet woodland, marsh and riverbank
Coldham’s Lane and Barnwell Road, Cambridge · Chalky grassland, scrub, woodland and streams
B1090 and Woodwalton-road approaches near Woodwalton · Ancient oak, ash and field-maple woodland
Grantchester Road, Trumpington · River Cam, woodland and small ponds
Grantchester Road, Trumpington, Cambridge · Riverside meadow, hedgerows and woodland
Uphall Road and Barnwell Road, Cambridge · Grassland, scrub and a small pond
Great Raveley Drain entrance west of Ramsey Heights · Fen, reedbed, wet woodland, meres and drainage channels
Long Lane approach from Gamlingay · Ancient oak, ash and field-maple woodland
Footpath from Granham’s Road, Great Shelford · Chalk springs, woodland, scrub and grassland
Limekiln Road, Cambridge · Former chalk quarry, woodland and hilltop grassland
Stretham Road, Wicken · Managed reedbed, lake, grassland and wetland
Wort’s Causeway, Cambridge · Mature beech and regenerating broadleaved woodland
Meldreth Road between Shepreth and Meldreth · Unploughed meadow, chalk stream and pollarded willows
Stonebridge Lane, Fulbourn · Meadows, wet fen, woodland and hedges
Chettisham village approach, north of Ely · Traditional hay meadow and thick hedgerows
Nearby complete guides.
Stops with a purpose: use one as a contrasting habitat or weather-proof Plan B. Distances are straight-line estimates, not road journeys.