Hamilton Pool is a natural pool and preserve located in the Texas Hill Country, near Austin, Texas. The pool is a picturesque and serene swimming hole, surrounded by towering cliffs and lush vegetation. It was formed by the collapse of an underground river, which created a unique, half-dome shaped grotto. The crystal clear waters of the pool are fed by a small waterfall, and are ideal for swimming, kayaking, and other aquatic activities.

Visitors to Hamilton Pool Preserve can hike the trails that wind through the surrounding hills, picnic in the lush greenery, and enjoy the breathtaking beauty of this natural wonder. The preserve is also home to a variety of wildlife, including deer, armadillos, and various species of birds.

Due to its popularity, the park often reaches capacity early in the day and visitors may have to wait to enter. It is recommended to arrive early in the morning to ensure a spot, and to be prepared for the park's rules and regulations, which include restrictions on swimming and diving.