🏊 Natural Swimming
🟡 Moderate Free Entry
🌊 About Sewell Park
Popular local swimming spot right at the headwaters of the San Marcos River on the Texas State campus.
📋 Visit Details
Water Temperature
💧 Cool, spring-fed year-round
Best Season
📅 Year-round, swift/cold currents
Water Type
San Marcos River (spring-fed)
Managed By
Texas State University
County
Hays County, Texas
Access Difficulty
🟡 Moderate
🗺️ Getting There
Address / Access Point:
601 University Dr, San Marcos, TX 78666
Access Notes:
Located on Texas State campus; steps into river
✅ Before You Go — Checklist
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Check current water conditions — especially after recent rain
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Save GPS coordinates offline before leaving — cell service may be limited
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Pack reef-safe sunscreen, dry bag, water shoes and plenty of drinking water
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Tell someone where you are going before heading to a remote location
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Pack out everything you bring in — leave no trace