Masafi Wadi is a popular place to visit in the eastern emirate of Fujairah.
Luke on his Luke’s Dubai Adventures journal has an interesting post (26 October 2008) on his ‘bush’ walk around the wadi—including how to get there and some of the highlights.
His descriptive notes also come with some photos, one of which is displayed here.
I asked Luke how far you could go in a standard car if you do not have a FWD and he said:
"You can go about 400 metres off the road in a standard car Geoff. We turned off after the bridge which leads to the dump (see the map on the link above). There is a track before the bridge that is a little more well maintained which you might be able to get further. All depends on the clearance under your car. It’s a nice walk though - start early is my advice!"
Dr Geoff Pound
Image: Farmed creek valley in a sheltered spot - palm trees and irrigated crops. (Photograph courtesy of Luke at the above link).