This cache will lead you to a wadi which ends in a waterfall with a cascade looking like a "Roman Theatre".
Combine this cache with a tour to GC9AEE-STEWED RABBIT and GC86E0-THE RUNES OF GANDALF.
If you own a 4x4 you will have no problems as some sandy and stony offroad driving is required, but also a 2WD with enough clearance and a skilled driver will be fine.
From Riyadh follow Highway 40, 505 and country road 5395 passing Hafirat Nisah and then country road 5223 to start your offroad drive just before the road is blocked.
After finding the cache and logging the logbook you should look for a way to cross the mountain at the waypoint and follow the road to the dam and then STEWED RABBIT