Welcome to Mirfa & Ruwais
A good spot to break the journey after a couple of hours is Mirfa, a low-key, sleepy fishing village with a nice sandy beach.
If you had any doubt as to the oil wealth of the UAE, it'll evaporate when you see Ruwais, an industrial town about an hour past Mirfa that exists only to service the massive refineries set up along there. Needless to say, there's little reason to stop.
Not far from Ruwais is Jebel Dhanna, the jumping-off point for Sir Bani Yas Island. It has absolutely gorgeous white sandy beaches and shallow azure water perfect for the kids to splash around.