Start at the pedestrian path on the eastern side of Black Park's main paid car park, near Go Ape. This circuit follows Buckinghamshire Council's Habitat Trail through woodland and heathland, finishing beside the lake. Allow about two hours for the 4.5 km walk, including pauses to look at the habitat boards.
Take the path east towards the head of the lake, then turn north onto Queen's Drive. Turn left towards the Western Bridleway and follow it north past Fulmershe Heath. Continue along the woodland ride below Fulmer Common Road, then turn south towards Five Points. Take the diagonal ride southwest and turn onto Bluebell Ride. Return south on Bond's Ride, then head west past Alder Carr to the lake. Follow its northern shore back towards the car park. Stay on the park paths throughout.
The walk is mostly level, on broad stone or gravel tracks. Loose stones, puddles and muddy edges need care. Some tracks are shared with cyclists, and Saturday's 9am parkrun makes the park busier.
Blue-green algae is currently reported in the lake: keep people and dogs out of the water and do not let dogs drink it. Cattle graze parts of the park until October 2026; use leads in signed grazing areas and give them space.
There are cafes and toilets near the start. Parking is paid, with seasonal closing times displayed at the entrance; do not park on Black Park Road. Choose daylight and follow current signs, particularly around the changing visitor area.
Route based on Buckinghamshire Council's Habitat Trail map, with a short car-park connection. Map and visitor notices checked on 3 October 2026. https://countryparks.buckinghamshire.gov.uk/walks-and-trails/