This walk follows the waymarked Adventurers’ Trail at Wicken Fen, the National Trust’s oldest nature reserve. Covering 809 hectares (2,000 acres) of grass and wetland, the reserve is home to more than 9,000 species. Herds of Konik ponies and hairy Highland cattle graze on the rough scrub, while keen-eyed wildlife watchers might even spot the more elusive muntjac deer, hares, water voles and lizards. On warm days the air fills with the buzz of insects, the rattle of dragonflies and the calls of waterbirds. No booking required for this walk. The cafe at the start/finish is open daily.