Hired a mountain bike from the bike shop at the edge of Grafham Water to cycle around the lake. Its an easy trail but is very muddy at the moment. Wear old trousers and take a change of clothes. Much quieter than it is in the summer. 2 cafes by the reservoir were closed though which was disappointing, but a pub in Perry was open, picnic tables in the garden, room to park bikes. Cycle route is almost flat but there are a few steep slopes, suggest cycling down these using brakes. A small part of the route is on local roads.
This review is the subjective opinion of a TripAdvisor member and not of TripAdvisor LLC.