This spring-fed public pool about an hour north of Austin is much like Barton Springs (cool, maybe clearer) but not as crowded. Admission $3.50 ages 13 and up, $2.50 ages 3-12 and seniors over 55.

Located within the park, this cool spot is also known as the Devil’s Waterhole. Heavy rains will produce a waterfall running over into the swimming hole, which is quite the lovely sight. Bring water shoes/shoes you can get soaked if you want to walk along the Devil’s Waterhole trail creek bed.

We had to include at least one spot on Lake Travis, which we suppose is technically a really big swimming hole. The island-like park is surrounded by the lake, and Mudd Cover and Gracy Cove don't allow pesky boats, so you can swim without fear.

You’ll need to make reservations and pay the reservation fee up front to swim in this lovely pool. That's because the place got too popular to accommodate parking for all the swimmers. And the reason that happened is because it's gorgeous, refreshing, and a little bit magical.

Deep Eddy Pool is a little west of Barton Springs, just as historic, fed by the same spring, and generally much more peaceful.

Yeah, yeah, yeah, overhyped, what's with all the algae these days, blah blah blah. Y'all. The much-vaunted 68-degree water is a balm and a solace to the overheated—one that will chill you to your very soul. And that chill will last for a very long time.

As is the trend these days, reservations are required to swim in this artesian spring. Fees start at $5 for kids 5-12 years old, seniors (60+), service members/veterans, and Hays County residents. People who don't fit into any of those categories pay $9. Parking and visiting the natural area are free.

In general, Wimberley is a whole other ball game when it comes to extraordinary swimming spots. It's worth the trip it takes to get to Blue Hole, which the city of Wimberley saved from ruin due to impending development. The whole park, now being restored and revived, is worth a gambol. Just don't skip taking the plunge when you're done.

An oldie but a goody, the San Marcos River is accessible from a number of spots, since it flows right through the town and its university campus. The clear, 72-degree river runs at a steady but not overwhelming pace, which makes it popular for tubing. A more relaxing and refreshing float you will not find.

At this spot on the Comal Springs in New Braunfels, the Edwards Aquifer creates a big lagoon perfect for tubing, floating, and swimming. Don't miss the slide carved into the side of a dam.