There are several companies to go through notably, Noah's Ark- https://www.noahsark.com Independent Rafting- https://www.independentrafting.com
Soak in these historic hot springs. Located between Salida and Buena Vista, the hot springs are a great place to enjoy with your family or loved one. Book a massage, enjoy a steam room, or just float around in a pool. They have three different sections; the upper pool has water slide and is the area best suited for children, the middle area has a sauna, as well as a hot and a cool pool, drinks are now being served here. The lower area doesn't allow children under 12, and is a great space to relax and enjoy one of their pomagranate margaritas.
If you would like to take the kids swimming, and don't need anything fancy, this is a great place to check out.