Love the Texas Hill Country! Natural spring swimming areas with shallow water perfect for little kids. This one is called Jacob's Well.
Natural water slide in Alpine, UT. Head North on Alpine's Main Street and then take a left on Fort Canyon Road, which you will follow for about one mile. After you cross a small river surrounded by foliage there will be a gate on your left leading to a field full of construction equipment. Follow the road up to the top, avoiding any tempting detours. Where the pavement ends, a dirt road begins, and to the left of that road is a small dirt path leading through the trees.