The Mist Mountain Hot Springs are the only natural/undeveloped hot springs in Banff & Kananaskis area and despite their location high up in the mountains, they’ve become a very popular objective.
Note that if you want to enjoy these hot springs just for yourself, you need to time your visit wisely as the pools are tiny and there’s only space for about 4 people at a time. Obviously there are no changing facilities as they're completely natural. Another thing to know is that the water is rather warm than hot, so these are not really a hot springs you want to visit on a colder day, but the hike is beautiful and this is a bonus in the end, so overall we do recommend visiting.