Hamilton Pool Preserve | Austin

Hamilton Pool Preserve is one of the most iconic natural landmarks in Central Texas. Located about 23 miles west of Austin, in Dripping Springs, it is part of the Balcones Canyonlands Conservation Plan and managed by Travis County Parks. The preserve is centered around a natural pool created thousands of years ago when the dome of an underground river collapsed, resulting in a stunning grotto, waterfall, and collapsed limestone overhang that defines the site today.

Natural Features

Hamilton Creek feeds the pool and waterfall. The water flows over a limestone outcrop and spills into the canyon below, forming a 50-foot waterfall.

The collapsed grotto creates a natural amphitheater with stalactite formations and a shaded, cave-like atmosphere surrounding the pool.

The pool itself is emerald-green and ringed by large boulders and shaded alcoves, creating a serene, almost otherworldly setting.

Ecological Importance

Hamilton Pool is part of the Balcones Canyonlands Preserve, a system protecting the habitats of endangered species such as the Golden-cheeked Warbler and the Black-capped Vireo.

The preserve includes over 230 acres of protected habitat with native plants such as Ashe juniper, live oak, and ferns that thrive in the cool, moist grotto environment.

The area is home to reptiles, amphibians, birds, and other wildlife. Seasonal wildflowers bloom across the preserve.

Access and Trails

A steep, rocky trail (about 0.25 miles) connects the parking area to the pool. The trail is not paved and can be rugged and slippery, especially after rain.

Visitors also have access to a longer river trail, which runs along Hamilton Creek to its confluence with the Pedernales River. This trail features a more remote hiking experience and rich flora and fauna.

The cliffside trail behind the waterfall is currently closed for safety due to rockfall hazards.

Swimming and Water Safety

Swimming is not guaranteed. Travis County conducts regular water quality testing, and swimming may be prohibited if bacteria levels are too high or if environmental conditions are unsafe.

When allowed, swimming is unsupervised—there are no lifeguards. Visitors swim at their own risk.

Jumping or diving from cliffs is strictly prohibited.

Reservations and Entry

Reservations are mandatory year-round, including weekdays. Walk-ins are not permitted.

Reservations are for specific time blocks: morning (9:00 AM – 12:30 PM) and afternoon (2:00 PM – 5:30 PM). Visitors must leave at the end of their time slot.

The reservation fee is $12 per vehicle, paid online. Entrance fees are paid on-site in cash only:

Adults (13–61): $8

Seniors (62+): $3

Children (12 and under): Free

Visitor Rules

No pets are allowed, even in vehicles.

No glass, alcohol, smoking, or drones.

Bring your own water and snacks—no concessions are available.

Restrooms are available near the parking lot, but there are no facilities near the pool itself.

The preserve is day-use only; no overnight camping is allowed.

Best Time to Visit

Spring and early summer are ideal for seeing the waterfall flowing at its strongest, especially after rain.

Summer is the busiest season—reservations may need to be made weeks in advance.

Autumn offers quieter visits with fewer crowds and pleasant hiking conditions.

Summary

Hamilton Pool Preserve is a geological wonder and ecological sanctuary that offers a unique escape into nature. While swimming is not always possible, the hike, scenery, and tranquil environment make it one of the most memorable day trips near Austin. Due to its protected status and popularity, visitors must plan ahead and follow all regulations to help preserve its delicate environment.