Pedernales is a classic Texas state park with a lot to offer and a short distance from Austin. It is often fully booked and your best chance to book a spot is far in advance or create a notification through the Texas State Parks site if a spot opens up. In the warm weather there's lots of swimming to be had, not in the falls themselves which are prone to flash flooding, but in another part of the park. Occasionally the water is home to poisonous algae which makes the water neither kid or dog friendly. Many of the sites have small shelters over their picnic tables.