San Antonio Hot Springs New Mexico. Also see the other 25 Best Hot Springs in the US You Must Soak In.
Keyhole Hot Springs, Canada, photo by /joelschat/ (two hours fifteen minutes out of Whistler, northwest) might be too out of the way, depending on what we're up to.
Romantic Icelandic spot: Landbrotalaug hot pot
Finding the Radium Hot Springs in Colorado
dirtlegends: “ A weekend’s soak in cascading Idaho hot springs while enjoying the aptly named Birthday Suit from Uinta Brewery. Photo by Scott Channing (@scottchanning) scottchanning.squarespace.com ”
The 20 Best Hot Springs in Nevada MAPPED: Arizona Hot Springs just outside of Las Vegas
Diamond Fork Hot Springs
Waterfall at Utah's Diamond Fork Hot Springs
Things to do in Idaho during Winter besides skiing: Soak in hot springs. Bonneville hot springs pictured here