The swimming hole in Firehole Canyon is one of two swimming areas inside Yellowstone National Park. The other area on the Boiling River has no facilities and is only open in late fall through winter because of water levels.
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As one of the few places in Yellowstone where you can actually enjoy a swim in the warm water, the Boiling River is ideal for an afternoon soak. Trailhead: Just north of the Montana border at the 45th Parallel Sign.
A Breathtaking Setting for Relaxing and RechargingWe are located just eight miles north of the North entrance to Yellowstone Park, at the south end of beautiful Paradise Valley. Yellowstone Hot Springs is a soaking experience unique in the world.
But Yellowstone's thermal features don't flow cold water like you're used to. Don't touch any water in or around thermal features. Never swim, soak, or wade in thermal features. More than 20 people have died from intentionally entering or falling into hot springs.
Swimming is only permitted during designated hours. The Firehole Swim area is closed at night. Bathing suits are required. No food, drink, or alcohol allowed.
If you plan to do any water activities while at your stay water shoes are a must. Activities could include swimming in the Boiling River in Yellowstone, rafting in Glacier, or kayaking on the many lakes in the area. Make sure your water shoes are secure and won't fall off (flip-flops are not recommended).
Abyss Pool, deepest hot spring in Yellowstone. Abyss Pool • Abyss Pool is in the West Thumb Geyser Basin and that is Yellowstone Lake in the background. It is 53-feet deep, this is the deepest pool in Yellowstone National Park.
Be careful of sharp underwater objects or slippery rocks (aqua shoes are helpful), and of course, never swim above or directly below waterfalls. Mountain water is often very cold, so avoid prolonged exposure causing hypothermia and always use extreme caution when swimming in Yosemite with children.