Could anyone who has visited here give me any information they have about the terrain within the park...specifically that of the Miles Loop? Whether it is rather hilly or level. I realize the campground itself sits on a bluff overlooking the water, but would like to know if the roads within the campground loops themselves are level or hilly...thanks for any help you can provide. Also, is it walkable from the campground loops to the swimming area or do you have to drive?