You want adventure, in a hot spring
Drive the Alaska highway to the Yukon and Alaska.
Park in the provincial campsite and walk the two miles into the Liard Hot Springs, all natural, actually they have gone modern they have change rooms and an outhouse. You will have to keep an eye out for moose and bears, they like it as well. It has been a few years since anyone was killed by a bear hiking in to the pools.
There are three pools, boiling eggs hot, just bloody hot, and warmer.