Glenwood Springs Hot Springs Pool is the world's largest natural hot springs pool, complete with waterslides for the kids and a spa for the adults. While you're at it, we recommend stopping by the Hotel Colorado across the street for a drink (or a ghost hunt)!
The Glenwood Caverns is a unique Wild West themed amusement park on top of a mountain. There are rides for the thrill seekers (Coral recommends the Swing and the Alpine Coaster), but the absolute highlight is touring the giant cave system.
The tiny town of Redstone is a hidden gem above Carbondale, CO. Stop by the free Penny Hotsprings, grab a bite at the Redstone Inn, and enjoy the historical downtown. If you keep going up Highway 133, you'll find the town of Marble which is tiny but covered in marble slabs and sculptures.