Just outside of Austin you can find the only clothing optional park in Texas, Hippie Hollow.

Resources:

https://do512.com/p/hippie-hollow

https://do512.com/p/weirdest-things-in-austin

https://parks.traviscountytx.gov/parks/hippie-hollow

Golden-cheeked Warbler and the Black-capped Vireo

https://en.wikipedia.org/wiki/Hippie_Hollow_Park