I have read all the reviews of campgrounds and rv parks in Townsend, TN but would still like to have a little advice. We would like to visit there this summer with our 3 and 4 yr old grandsons. Namely, I would like for them to be able to tube on a river. So, with their ages, it needs to be the safest or calmer part of the river. Does anyone know which campground would be on an area of the river that small kids would enjoy? Leaning toward Little River, Big Meadow, or Tremont based on reviews. Does anyone have other suggestions? Also, which of these three has the larger sites? Thanks so much for your help.