Out the door it's the tow path, though can go a long way there, not very off road though. Rideable is Tunnel Hill though not keen on the roads to get there.
Otherwise it's a short 20min drive to Surrey Hills or bit further to Swinley, Caesars Camp, or hour-ish to Aston Hill, Rogate, QECP, and 3+ to South Wales.
I could ride to Surrey Hills but it's a fair slog for me. Newlands Corner a little quicker.