5.0
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22
hikers
00:40
2.52km
20m
Hiking
The Hamilton Pool Trail offers a captivating journey into a collapsed grotto, where a 50-foot waterfall plunges into a vibrant blue-green natural pool. The path itself is a short 1.6-mile (2.5 km) hike, but don't let the distance fool you; it features a steep, rugged descent with uneven steps into the canyon, transitioning from semi-arid uplands to lush riparian vegetation. You'll find yourself surrounded by fern-canopied cliffs and unique plant species, making for a truly picturesque experience.
Planning your visit to the Hamilton Pool Preserve requires a bit of foresight, as a reservation system is in place for entry. It's crucial to check the Travis County Parks website for current information on permits and any potential closures or restrictions, especially regarding swimming. While the hike is rated easy overall, the descent and ascent can feel moderately challenging due to the terrain, so wear sturdy shoes and allow about 39 minutes for the round trip, which includes 56 feet (17 metres) of elevation gain.
This unique geological formation, created by the collapse of an underground river thousands of years ago, is a designated nature preserve aimed at protecting endangered species and rare plant communities. It's part of the larger Balcones Canyonlands Preserve, highlighting its ecological significance. The cooler, humid air within the sheltered canyon creates an ideal microclimate for cypress trees and ferns, adding to the distinctive atmosphere of this historic swimming hole.
Last updated: June 9, 2026
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2.49 km
Highlight • Waterfall
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2.52 km
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2.52 km
Surfaces
2.44 km
< 100 m
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The trail to Hamilton Pool is generally rocky and rugged, featuring uneven, steep stone steps, especially on the descent into the canyon. Sturdy shoes are highly recommended. The path consists of packed dirt and rock. While the initial descent is steep, sections along Hamilton Creek are relatively easier and flatter, though they can be undulating.
Yes, reservations are required to visit the Hamilton Pool Preserve. It's essential to book in advance to secure your entry.
The trail is generally classified as moderate. The short quarter-mile hike down to the pool is steep and rocky, making sturdy footwear essential. It is not suitable for strollers. While some sections are easier, the uphill return from the pool can be strenuous, especially in warm weather. Families with older children who are comfortable with uneven terrain might enjoy it.
No, pets are not permitted anywhere in the Hamilton Pool Preserve. Please leave your furry friends at home.
The preserve transitions from semi-arid uplands to a cooler, more humid canyon. While beautiful year-round, be aware that the uphill return from the pool can be more strenuous in warm weather. Spring and fall offer pleasant temperatures and the chance to see wildflowers.
The main highlight is the breathtaking Hamilton Pool Waterfall, which plunges into a collapsed grotto with an emerald-green natural swimming hole. The grotto features visible stalactites and dramatic limestone cliffs. Beyond the pool, the trail follows Hamilton Creek to the Pedernales River, offering picturesque views.
Swimming access in Hamilton Pool is not guaranteed. It can be closed due to factors like water quality issues or falling rocks. Always check the preserve's official website for current conditions before your visit.
As you descend into the canyon, you'll see bald cypress trees and ferns. Beyond the pool, along Hamilton Creek, you might spot diverse wildlife including deer, foxes, butterflies, and various bird species like the Golden-cheeked Warbler. Wildflowers are also present, filling the air with their scent.
Given the rocky and uneven terrain, sturdy closed-toe shoes are highly recommended. Bring plenty of water, especially on warmer days, as the uphill return can be strenuous. Sunscreen, a hat, and insect repellent are also good ideas. If swimming is permitted, bring a towel and swimsuit.
Parking is available at the Hamilton Pool Preserve entrance. Remember that reservations are required for entry, which includes parking access. Public transport options are generally limited, so driving is the most common way to access the preserve.
The primary trail to Hamilton Pool is a relatively short out-and-back descent to the grotto. However, there is a longer trail that follows Hamilton Creek to the Pedernales River, which can extend your hike and offers additional scenery.
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