McKinney Falls State Park
A state park inside Austin city limits where Onion Creek tumbles over two distinct limestone waterfalls that kids can wade right up to and explore. The Upper Falls have shallow pools perfect for younger kids and the Lower Falls drop into a bigger swimming hole. The Homestead Trail passes the ruins of an 1850s homestead which adds a history lesson to the hike. Camping here means you can explore Austin by day and sleep under the stars at night.