Our only trip to Dauphin Is. was about 6 or more years ago and we stayed at Dauphin Is. Campground. Nothing elaborate and no cable TV, but just a short walk to Mobile Bay. Not all bad for a couple of days stay.
I understand there is another campground on the Island named Pelican Nest but it must not have been open when we were visiting. In fact, the whole area was still recovering from a hurricane.
I do remember a good seafood restaurant on the left side of the road just as you are coming on the island that we ate at a couple of times.
There is an excellent web site named:
RV Park Reviews :: Home
that I always use when considering an area to visit. Perhaps you will find it useful.
Walter, Barbara & Coco (fur child)