Cycle the Surrey trails on Saturday with Barry, optionally staying overnight at Holmbury hostel. On Sunday, go mountain biking around Holmbury with Paul D. Hiring a bike is an option.
Meet West Croydon Saturday 0920 for 0936 departure to Dorking, return from Dorking late afternoon. Dorking station is around 40 minutes cycle ride from Holmbury.
If staying overnight, you will need to book your own accommodation either in the hostel or camping.