Willow Beach, AZ
Arizona Hot Spring
A slot-canyon oasis in the Black Canyon where 111-120°F water cascades through three rock pools before spilling into the Colorado River. Reached by a strenuous 3-mile…
Blue Range Primitive Area · Blue, AZ
One of Arizona's most isolated soaks: stone-and-mortar catch basins in the Blue Range Primitive Area, 133°F at the source and cooler in the pools. Getting there means a multi-day backpack through Blue River canyon narrows with waist-deep wades.
No reservations — wild springs are first-come, first-served. Some trailheads require a parking pass or day-use fee, so check the listing details and current land-manager rules before you go.
Swimwear and a towel, drinking water, a trash bag (pack out everything, including food scraps), and a headlamp if you're staying for sunset. Never bring glass near a wild spring — broken glass in a pool ruins it for everyone.
Wild spring temperatures shift with seasons, rainfall, and river levels — a pool that's perfect in October can be scalding or flooded in May. Test the water with a hand before getting in, and check recent trip reports for current conditions.
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