Geothermal water worth building a cold-season trip around. 16 places, mapped and ready to build a trip around.
Plan a trip on Trailwind →Forty degree water at 1,585m with the Rockies over the rim. Best in a snowstorm.
More hot water rises here than anywhere on earth outside Yellowstone. Steam comes out of the street drains.
An hour from Fairbanks and directly under the auroral oval. Soak at 40C while it is minus 40 and the sky is moving.
Art nouveau tile, stained glass and a vaulted hall that looks more like a cathedral than a spa.
The largest hot springs pool in the world, in a Colorado river valley, open since 1888.
Ryokan soaking with Mount Fuji across the valley, ninety minutes from Tokyo. Clearest views are in the cold months.
The snow monkeys. They only bathe when it is genuinely cold, so the photograph everyone knows requires winter.
A whole village that agreed to ban neon and concrete. One wooden pass gets you into three different open-air baths.
Japan's most acidic major spring, so hot it is cooled by hand with wooden paddles in a performance called yumomi.
Second largest hot spring in Canada, deep on the Alaska Highway. The warm microclimate keeps a boreal oasis alive at minus 30.
The Blue Lagoon without the queue, up in the north where the aurora oval sits directly overhead. Steam and green light in the same frame.
Hokkaido's Hell Valley vents sulphur straight into the town's baths. Nine different water types in one place.
Andean thermal pools at 3,300m on the edge of the cloud forest, an hour from Quito. Warmest water, coldest air.
Neo-baroque palace, eighteen pools, old men playing chess in the steam while it snows. Budapest sits on more thermal water than any capital in the world.
Seventeen slate pools linked by a scarlet boardwalk through a Patagonian rainforest ravine. Southern hemisphere, so it peaks in the northern summer.
Sulphur water at 37C falling down limestone terraces in open Tuscan countryside. Free, and busiest at dawn for good reason.