# Hot Spring North Arm Peril Strait, Alaska

Hot Spring North Arm Peril Strait in Alaska. 100°F (38°C). Backcountry · Public Land. Sitka City and Borough County.

- Page: https://www.soakingsprings.com/hot-springs/alaska/hot-spring-north-arm-peril-strait
- Source: Soaking Springs, researched and maintained by Armen Suny
- Updated: 2026-09-14

## Can you soak at Hot Spring North Arm Peril Strait?

The water leaves the ground at 100°F, a comfortable soaking temperature. It sits deep in the backcountry. It's on US Forest Service land. We haven't confirmed whether it has a pool or charges a fee.

## Key facts

| Fact | Value |
|---|---|
| Source water temperature | 100°F (38°C) (USGS record; developed pools are often cooled) |
| Total dissolved solids | 786 mg/L |
| Elevation | 141 ft |
| Access | Backcountry · Public Land, 12.7 mi from the nearest road |
| Land | Tongass National Forest, US Forest Service |
| County | Sitka City and Borough County |
| Nearest town | Sitka |
| Coordinates | 57.77100, -135.82000 |
| Best months to soak | January, February, March (largest gap between water and average air temperature) |
| Nearest campground | MOSER ISLAND CABIN, 6.1 mi |

## About Hot Spring North Arm Peril Strait

On the north arm of Peril Strait, in the Tongass National Forest out from Sitka, a spring comes out at roughly bath temperature. Access is open. It is a backcountry spot; the closest road is nearly thirteen miles away. The measurement behind that temperature was taken in 1915, the year of the only water sample on file.

Low ground near the water in Southeast Alaska's rainforest, where rain tops a hundred inches a year and the snowfall figure is large. The Forest Service's Moser Island Cabin is the nearest shelter on record, about six miles off. Getting there is your problem to solve; the record lists no trail and no road anywhere close.

The USGS site record for this spring includes a water sample from June 1915.

January into March is flagged as the best window. The temperature as measured would be comfortable to sit in, but the measurement is over a century old, so expect anything. The water carried a fair amount of dissolved solids and some iron. The Moser Island cabin is the only lodging on record.

## Water chemistry

Lab sample from 1915-06-29 (Water Quality Portal).

| Measure | Value |
|---|---|
| Total dissolved solids | 786 mg/L |
| Calcium | 37 mg/L |
| Magnesium | 11 mg/L |
| Sodium | 206 mg/L |
| Sulfate | 329 mg/L |
| Chloride | 133 mg/L |
| Iron | 1,400 µg/L |

## Nearby

- Nearest city page: [Hot springs near Haines](https://www.soakingsprings.com/hot-springs/near/alaska/haines), 62 mi away
- State page: [Hot springs in Alaska](https://www.soakingsprings.com/hot-springs/alaska)
- [White Sulphur Springs (Hooniah H S), AK](https://www.soakingsprings.com/hot-springs/alaska/white-sulphur-springs-hooniah-h-s): TDS 276 mg/L, Hike, near Sitka, Sitka City and Borough County
- [Hot Springs North End Tenakee Inlet, AK](https://www.soakingsprings.com/hot-springs/alaska/hot-springs-north-end-tenakee-inlet): 180°F source, Backcountry, near Sitka, Sitka City and Borough County
- [Nylen Hot Springs, AK](https://www.soakingsprings.com/hot-springs/alaska/nylen-hot-springs): Backcountry, near Sitka, Sitka City and Borough County
- [Neka Hot Spring, AK](https://www.soakingsprings.com/hot-springs/alaska/neka-hot-spring): Short Walk, near Sitka, Sitka City and Borough County
- [Tenakee Hot Springs, AK](https://www.soakingsprings.com/hot-springs/alaska/tenakee-hot-springs): pH 7.7, Short Walk, near Sitka, Sitka City and Borough County
- [Hot Spring Near Fish Bay, AK](https://www.soakingsprings.com/hot-springs/alaska/hot-spring-near-fish-bay): 117°F source, TDS 345 mg/L, Backcountry, near Sitka, Sitka City and Borough County

## Questions

**What is the water temperature at Hot Spring North Arm Peril Strait?**
Hot Spring North Arm Peril Strait has a water temperature of 100°F (38°C). This is considered a hot spring, well above body temperature.

**Where is Hot Spring North Arm Peril Strait located?**
Hot Spring North Arm Peril Strait is located in Sitka City and Borough, Alaska at 141 feet elevation, near Sitka. Coordinates: 57.7710°N, 135.8200°W.

**How do I get to Hot Spring North Arm Peril Strait?**
Hot Spring North Arm Peril Strait has Backcountry road access (12.7 mi from the road).

**Is Hot Spring North Arm Peril Strait free to visit?**
Hot Spring North Arm Peril Strait has Open access. It is managed by US Forest Service.

**Can I camp near Hot Spring North Arm Peril Strait?**
Yes, Moser Island Cabin is located nearby (6.1 miles away).

**What minerals are in the water at Hot Spring North Arm Peril Strait?**
Water chemistry analysis shows the presence of Total Dissolved Solids, Calcium, Magnesium, Sodium, Sulfate, Chloride, Iron. Total dissolved solids measure 786 mg/L.

## Sources

- USGS thermal springs records, Water Quality Portal lab analyses, OpenStreetMap, Wikipedia/Wikidata, NOAA climate normals