Getaways with sauna

Fuji Five Lakes, Yamanashi

An upscale lakeside resort near Mt. Fuji with 16 cabins, domes and villas, each holding a private natural hot spring bath and sauna.

Park City, Utah

A two-bedroom cabin with a hot tub near Eagle Mountain, Utah, booked directly through Stewart Mountain Lodging, sleeps two, pets allowed.

Allgäu, Bavaria

Ten wood igloo-shaped tiny houses sit on a swimming lake at Campingplatz Röhrenmoos near Wangen im Allgäu, with sauna and kitchen included.

Taos, New Mexico

A single tipi on a 40-acre goji berry farm in San Cristobal, New Mexico, 10 miles north of Taos with mountain views and a shared hot tub.

Olympic Peninsula, Washington

A 20-foot-high treehouse over the water near Port Angeles, Washington, with two bedrooms, a hot tub and sauna, sleeping two.