There are details of routes, including a Jubilee Trail, events, rides and useful links on WHITCHURCH CYCLING – a local resource for cycling information.
OFF ROAD TRAIL
Hampshire County Council has a description of an off-road cycle trail on its website HERE.
The trail map can be downloaded from them HERE.
The strenuous trail is 23 miles long, 14 of those miles are off-road.
Many of the areas that inspired Richard Adams for his book ‘Watership Down’ are along this route.