Getaways with sauna

Aspen, Colorado

A century-old guest ranch on the Frying Pan River about an hour from Aspen, with cabins, hot tub, sauna and room for up to 70 guests.

Big Island, Hawaii

A one-bedroom treehouse on a 3-acre fruit farm in the Kaloko rainforest near Kailua-Kona, Hawaii, with ocean views, a hot tub and sauna.

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.

Catskills, New York

Gatherwild Ranch has eight glamping tents and ranch-style shelters spread across hillside farmland in the Catskills area of New York's Hudson Valley.

Mendocino, California

A treehouse built around a living redwood in Mendocino, California, with a sauna, fireplace and mountain views, booked through Airbnb.

Santa Teresa, Puntarenas

A 13-bedroom treehouse retreat near Playa Hermosa in Santa Teresa, Costa Rica, built around a large sauna and jungle lookout decks.

Asheville, North Carolina

A-frame cabins, a treehouse, and a creekside sauna and cold plunge spread across 38 wooded acres near Asheville in Zirconia, North Carolina.

Zion, Utah

A luxury ranch of private lodges bordering East Zion National Park, with mountain views, some saunas, and a working buffalo herd.

Eagle County, Colorado

A treehouse-style vacation home in Eagle-Vail, Colorado with mountain views, a hot tub and a sauna, geared toward couples.