Getaways with sauna

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.

West Cork, Munster

An adults-only mountain lodge near Bantry in West Cork's Mealagh Valley, with a private hot tub, shared sauna and trail access for two.

Olympic Peninsula, Washington

A treehouse with a hot tub, sauna, cold plunge and fireplace, sleeping up to 10 guests near the San Juan Islands, Washington.

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.