Balmorhea State Park
Built by the CCC in the late 1930s, the 1.75 acre v-shaped pool is fed by San Solomon Spring. The pool maintains a temperature between 72-76 degrees year round and reaches a depth of 25-feet. To say the water felt warm on this crisp winter night would be a lie, but it did feel warmer than jumping into, say, a river in January. We only shivered in the water for a few minutes, but decided to stick around for another two days to enjoy the water as the temperature rose into the upper 60s.