Lava Hot Springs is an amazing spa center and outdoor waterpark heated by geothermal mineral springs in the area. The pools range from 102ºF to 110ºF and the sensation of enjoying the massive hot pools during the spring of fall when the mountain air is cool and crisp is unbeatable. The park itself is divided into a couple of sections: first, you have the hot pools. These are natural jacuzzi-style pools featuring a variety of steamy water temperatures to help you relax. Then, there's an indoor part with a large swimming pool that's perfect for when the weather is less than optimal or you have small children. Finally, the most popular part of the complex: the water park. The water park has an Olympic-sized pool surrounded by grassy areas to layout and a few snack bars. There are also four large, fun water slides and a couple of diving platforms (including one that is really, really tall!). You need to sign a waiver to jump off the high dives, but otherwise you can relax at your leisure. They even allow you to bring your own chairs, umbrellas, and picnic goodies (no alcohol, though) so you can make an entire day out of it. The best part? The outdoor water park has a water temperature of around 90ºF so it's nice and warm without getting too hot. It's lovely. I'd recommend it 100%!!!