About Revisions Aquarena Springs 921 Aquarena Springs Dr., San Marcos, TX 78666 512-245-7570 | More Info Max Depth: 31-35ft/9-11m Average Viz: 36-40ft/11-12m Entry Type: Shore Bottom Composition: Sand Aquatic Life: Plenty To See Spring: 71-75°F/22-24°C Summer: 71-75°F/22-24°C Fall: 71-75°F/22-24°C Winter: 71-75°F/22-24°C 8/20/2014 3:12 PM Greg 6/23/2014 9:13 AM Greg 6/16/2010 1:30 PM

You MUST be a Certified Science Diver

The Diving For Science Program at Aquarena offers certified scuba divers an opportunity to participate in the conservation and preservation of the San Marcos Springs and its unique and critical habitat to several species that live here and no where else in the world.

Diving for Science Authorization Course - $230