One of the experiences that I would like to add to me wish list is to be in a hot-tub while outside when its really snowing hard. Are there any hotels/ cottages with private access to a hot-tub outside of your room in the CS/Denver area? Preference goes to hotels, but cottages are OK too.
Turns out AirBnb has a list of amenities, including pools spas and hot tubs, which can be used to filter out properties. I would use this as a starting point for your search. Here is a random property mentioning a hot tub in Colorado Springs.
In my opinion you will find more hot tubs in private properties in Colorado Springs. Denver will probably offer more communal saunas and pools.