My wife and I take part in Trai Break events
'Southern Trail Rides are designed to take the hassle out of a great days riding. If you're new to the sport and don't know where to ride, or a more experienced biker looking to find new areas, or if your lifestyle just leaves you too busy to plan your weekends riding, the Trail Rides are ideal for you.
Just choose from one of three waymarked off-road mountain bike rides, laid out to suit a range of riders. The rides are held in locations across the south, selected for the quality of their off road riding. Event bases are chosen for their good parking and general facilities.'
Depends where you are based...........
http://www.trailbreak.co.uk/trail_rides