“Hot potting” is the practice of soaking in natural hot springs. Hot springs, also known as thermal springs, form when water seeps deep into the Earth and circulates back up. The deeper the rocks, the ...

It's not hard to find natural wonders within Yellowstone National Park, but the park's largest hot spring might be the most remarkable, and not just for its size: dubbed the Grand Prismatic Spring, ...

From onsens in Japan to high-altitude pools in Bolivia, the photographer Greta Rybus shares highlights from her search for thermal waters. Looking out from the simple changing room at a hot springs ...

Emily Pennington is a columnist and longtime Outside contributor. For her 63 Parks column, she visited every U.S. national park. As chilly weather approaches and the leaves turn, it’s time to swap out ...

Catie Leary writes and curates visual stories about science, animals, the arts, travel, and the natural world. This steaming, effervescent spring is the centerpiece of New Zealand's famous Wai-O-Tapu ...

As dynamic and picturesque today as when it first opened in 1832, this park remains one of Arkansas' best-kept secrets. Soak in Hot Springs National Park's thermal waters at Buckstaff Bathhouse, the ...