The only one mountain which can be reached by road is called in Qatar JEBEL EL FUWAIRET, It is one of the awesome tourist camping area going to shemaal the mountain is full of rocks extending to sea. so, night fishing and morning rock climbing both works fantastically in this area., and I have seen a europian guy took his jeep top of the hill and relaxing wonderfully. So your acrobatics in this unique place and let the life get something amazing experience. Good Luck.