Hamilton Pool Preserve
A collapsed grotto with a 50-foot waterfall spilling into a jade-green natural pool surrounded by massive limestone overhangs draped in ferns and moss. It is one of the most stunning natural swimming holes in Texas and kids are awestruck the moment they see it. Reservations are mandatory and sell out quickly. The quarter-mile trail from the parking area descends steeply so it is not suitable for very young children or strollers.