Cycling and/or camping tour (Riyadh)

Anybody interested in taking a multi-day, self-supported cycling tour?

I'm thinking of finding a good rural spot to meet and start from, with one or two nights of camping over a weekend. Distances aren't that important, but I would love to find a place with varied terrain and interesting things to see.

If anyone is interested, please let me know. Also, suggestions for places to cycle would be very appreciated.