Colorado Bend State Park
This is a beautiful green park with tons of waterfalls, hiking trails, swimming, and nature. You can hire a rafting trip from nearby and join a ranger hike to the caves too. The campground is nice and simple but all the sites are wonderfully close to the river. If you choose a walk-to tenting site you can be right next to the river. There’s also a backpacking area a few miles down one of the hiking trails. This is a great park to enjoy nature. Not sure if there are hot springs, but the swimming is fed by springs.