Hot Springs North End Tenakee Inlet
At 180°F, this is one of Alaska's hottest springs, delivering a stunning 138°F temperature differential above the 42°F maritime climate. Located in the Tongass National Forest, it combines exceptional thermal intensity with old-growth rainforest access.
The spring emerges at 448 feet elevation along Tenakee Inlet in Southeast Alaska's temperate rainforest. The surrounding landscape features dense vegetation, saltwater views, and the cool maritime environment. Eight Fathom Cabin, 14.9 kilometers away and accessible by boat or float plane, serves as a potential base for exploration.
Access requires boat or float plane to reach the trailhead near Hoonah. A 9.4-kilometer hike from Forest Road 8580 leads to the spring. The area remains remote and weather-dependent; plan for maritime Southeast Alaska's frequent rain and fog. Best accessed during summer months.
Tongass National Forest protects this spring as part of its multiple-use mandate, with permanent protection allowing extractive use. The site sits on US Forest Service land designated as National Forest. The extreme temperature differential indicates robust geothermal activity beneath the Aleutian tectonic zone.
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Overview Eight Fathom Cabin was constructed in 2009. It is located 15 miles from Hoonah, Alaska in the protected waters of Port Frederick. It is generally available year-round and makes an excellent base for experiencing this corner of Alaska, offering recreational options and abundant wildlife. The cabin is remote. It is accessible only by boat or float plane. From Hoonah, the boat ride is 45 minutes. By float plane, the flight is 30 minutes from Juneau and less than 10 minutes from Hoon...
Hot Springs North End Tenakee Inlet requires a hike to reach, so pack light but prepared. The water is dangerously hot — bring water shoes and test pools carefully. Cold air temperatures make a changing robe or warm layers essential.
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