Wicken Fen
Wicken Fen is one of Britain's oldest and most celebrated nature reserves, managed by the National Trust since 1899, making it the oldest National Trust nature reserve in the country. Situated in the heart of the Cambridgeshire fens, it preserves a precious fragment of the vast lowland wetland that once covered much of East Anglia before centuries of drainage transformed the landscape into agricultural land. Today it stands as a living relic of that ancient fenland ecosystem, offering an extraordinary window into a habitat that has almost entirely vanished from the British countryside. Its scientific, ecological and historical importance is immense, and it has been studied by naturalists since the Victorian era, drawing generations of entomologists, botanists and birdwatchers to its waterlogged expanses.
The history of Wicken Fen is inseparable from the broader story of the English fens. For millennia, this land was part of a vast wetland stretching across the flatlands of Cambridgeshire, Norfolk, Lincolnshire and beyond, inhabited by communities who made their living from reed cutting, wildfowling and peat digging. The village of Wicken itself sits beside the reserve, and the fen was historically managed by local people who harvested sedge and reed, unwittingly maintaining the open fen conditions that now make it so ecologically valuable. Systematic drainage of the broader fenland began in earnest in the seventeenth century under the direction of the Dutch engineer Cornelius Vermuyden, who was commissioned by the Earl of Bedford to drain vast tracts for agriculture. This transformation left Wicken as one of the last survivors of the primordial landscape, and early naturalists quickly recognized its significance. The entomologist J.C. Dale was collecting insects there as early as the 1820s, and by the late Victorian period it had become a mecca for Cambridge University natural historians.
What distinguishes Wicken Fen physically is the curious fact that it now sits several metres above the surrounding drained agricultural land. This is because the peat soils of drained fens oxidize and shrink when dried, causing the land surface to subside dramatically over time. Wicken, left in its waterlogged state, has retained its original elevation, creating the surreal impression of a raised island of ancient wetland floating above an engineered agricultural plain. This inversion of the expected landscape is one of Wicken's defining peculiarities. Within the reserve, the terrain is laced with a network of lodes — flat-bottomed drainage channels that double as navigation routes — and a series of shallow meres, reed beds, sedge fields and carr woodland where willow and alder crowd thickly together.
A visit to Wicken Fen engages all the senses in a distinctly atmospheric way. The air carries a rich, earthy smell of decomposing vegetation and standing water, and in summer the reserve hums and clicks with insect life. The famous sedge fields shimmer silver-green in a breeze, and the flatness of the landscape means that skies feel enormous, with cloud formations reflected in the dark, coffee-coloured water of the lodes. Bitterns boom from the reedbeds in spring, a deep resonant sound that carries across the reserve, and marsh harriers quarter low over the vegetation throughout the season. At dawn and dusk the reserve takes on an almost otherworldly quality, with mist rising from the water and the calls of wading birds and wildfowl echoing across the open fen.
The wildlife at Wicken Fen is genuinely exceptional by any measure. Over 9,000 species have been recorded on the reserve, including more than 1,000 species of beetle and over 1,700 species of moth and butterfly. The fen is home to the fen violet, a nationally rare plant, and supports important populations of marsh harrier, hobby, bittern and bearded tit. The reserve's lodes are rich in aquatic invertebrates, and the sedge and reed beds shelter water voles and otters. The National Trust has been steadily expanding the reserve as part of its Great Fen Vision, an ambitious conservation project aiming to restore and connect a 3,700-hectare area of fenland between Wicken and Holme, reversing centuries of drainage and rewilding a huge swathe of East Anglian countryside for future generations.
The surrounding landscape of the Cambridgeshire fens is flat to a degree that can feel disorienting to visitors unfamiliar with the region. The horizon is wide and uninterrupted, bisected by arrow-straight drove roads and the geometric lines of drainage ditches. The nearby village of Wicken has a welcoming pub and a small church, and the market town of Ely lies roughly eight kilometres to the northwest, its magnificent cathedral rising above the flat plain with dramatic effect. Soham is the nearest larger settlement to the east. The reserve sits beside Wicken Lode, a navigable waterway that connects to the wider network of Cambridgeshire waterways, and during summer months it is possible to arrive by canoe or punt via the lode, adding a genuinely memorable dimension to any visit.
Practically speaking, the reserve is well set up for visitors of all abilities. There is a visitor centre with a café and toilets at the main entrance, and the National Trust maintains an extensive network of boardwalks and surfaced paths suitable for wheelchair users and those with pushchairs. A traditional wooden windpump, dating from the late eighteenth century, is one of the reserve's most iconic landmarks and has been restored to working order, representing the technology once used to manage water levels across the fens. For those wishing to explore more deeply, several longer circular walks take visitors through different habitats, and guided walks and events run throughout the year. The reserve is open year-round, though spring and early summer are particularly rewarding for birdwatching and flora, while winter brings large flocks of wildfowl and the chance to see short-eared owls hunting over the fen in daylight.
One of the more fascinating hidden stories of Wicken concerns its role in the history of ecology as an academic discipline. Cambridge University students and academics have been coming to the fen to study and collect since the Victorian era, and many foundational observations in British natural history were made here. The reserve became a living laboratory, and some of the earliest scientific understanding of plant succession and wetland ecology was developed in part through studies conducted at Wicken. Charles Darwin's family had connections to Cambridgeshire, and entomological collecting trips to the fens were a well-established tradition in his circle. The fen continues to serve an educational role today, hosting school groups and university researchers who add to a knowledge base stretching back nearly two centuries.