[Dog Gone]

The world's largest spring fed swimming pool, with a 62,000 square foot surface (almost 1.5 acres) is Balmorhea State Park in the Big Bend Region.

Woo hoo! Been there, done that. Thanks for the great post!

[Billie]

Thanks, Dog Gone! Really COOOOOLD water, Balmorhea!!! But so is Barton Springs in Austin! Takes your breath away when you first jump in the spring-fed pools, huh?!