Make the most of your visit to these lux American sweat lodges with these recommendations from the Finnish Sauna Society:

1.      Shower to rinse off perfume or scented lotion, which could irritate heated skin.

2.      Enter the sauna while wet. Ladle water over the hot stones to create steam. According to Weil, air that’s too dry can inflame the upper respiratory tract.

3.      When you feel warm enough, leave the sauna, soak in a cool shower or pool, and drink some water.

4.      Return to the sauna. If you want, apply a moisturizing mask to your face or hair. Then brush yourself with a birch whisk, scrub or loofah to exfoliate and increase circulation.

Mauna Lani Resort

Kohala Coast Hawaii

The spa’s naturally heated, open-air Lava Sauna is shaped like a skate ramp, so the sloped walls trap heat. While relaxing, you can baste yourself with skin-smoothing black clay. After your body mask has dried, shower, the retreat to the outdoor waiting area.

Rooms start at $430; www.maunalani.com

The Carneros Inn

Napa, California

It’s situated deep in the heart of California’s wine country, but this spa has a Nordic sensibility. All treatments are bookended with heat therapy in a traditional Finnish dry sauna.

Rooms start at $325; www.thecarnerosinn.com

Juvenex Spa

New York City

Open 24 hours a day, this midtown spa offers two saunas, one made of clay bricks an one constructed out of 20 tons of jade, which some Asian cultures believe to have healing prosperities. The Jade Journey starts in the gemstone igloo, then moves through cold showers and herbal soaks before finishing in the baked-clay room.

$65 for the Jade Journey; www.juvenexspa.com