Point Arena Hot Springs

Sonoma County, California · Near Sea Ranch
38.8740°N, 123.5180°W · 375 ft
111°F 60°F air · Good soaking weather 375 ft Closed Short Walk NGO
Aerial view of the ground around Point Arena Hot Springs LiDAR bare-earth view of the same ground around Point Arena Hot Springs
Aerial LiDAR bare earth

Drag the handle to compare the two views. The orange dot marks the spring, in a frame about three quarters of a mile wide.

Point Arena Hot Springs is a closed hot spring on the Garcia River, inside the Garcia River Forest, about eleven miles from Sea Ranch. The recorded temperature is hot, a touch over the soaking range. The important fact is the access status: closed. A conservation organization holds the land, and Wikipedia describes it as private timber property that is no longer legally open to the public.

Location

The spring is two tenths of a mile from the road, on low ground in wet forest country that takes more than three feet of rain most years and almost no snow. The land record shows Garcia River Forest under NGO ownership with a private conservation designation. The file carries no road name and shows no fee.

Do not plan a trip here. The access status is closed and the owners are a timber and conservation interest, so walking in is trespass. If that ever changes, the water is on the hot side and would need care getting in, and the season would be the wet winter months listed. No campground or fee is recorded.

History of Point Arena Hot Springs

A resort operated at these springs in the late nineteenth and early twentieth centuries. The 1913 California Blue Book called Point Arena Hot Springs one of California's most beautiful health resorts. Wikipedia places them along the Garcia River about fifteen miles southeast of Point Arena and notes that the land passed into private timber company hands, ending public access.

Terrain

Aircraft with laser scanners measured this ground to within inches. The scan strips out trees and buildings, leaving the bare shape of the land around Point Arena Hot Springs.

Setting
Canyon floor
Steep ground climbs away on both sides of the spring.
Highest ground nearby
355 ft above the spring
Within a quarter mile, to the north
Cross-section through the spring

A slice through the ground from north to south, about 0.6 miles end to end.

Elevation data: USGS 3D Elevation Program. Aerial imagery: USGS The National Map. Public domain.

Heat Below
151 milliwatts per square meter of heat flow

That's about 2½ times the US average of 65. It's higher than at 94% of the springs on this site.

Heat flow measures the warmth working its way up through the ground from deep inside the earth. Where it runs high, rain and snowmelt that seep down through cracks in the rock come back up hot.

Heat flow estimate: Stanford Thermal Earth Model (Aljubran & Horne, 2024), CC BY 4.0.

Monthly Climate
50°
Jan
50°
Feb
51°
Mar
54°
Apr
57°
May
62°
Jun
64°
Jul
65°
Aug
64°
Sep
61°
Oct
54°
Nov
50°
Dec
Annual Precip: 36.8 in Annual Snow: 0.5 in
Best Time to Visit
January Air 50°F · Water 111°F · +61° contrast
February Air 50°F · Water 111°F · +61° contrast
December Air 50°F · Water 111°F · +61° contrast
January offers 15°F more contrast than August
Current Conditions
60°F
ENE 0.0 mph 69% Good soaking weather
Today 81° Low 54° Sunny
Spring is +30° warmer
Wednesday 72° Low 54° Sunny 3% precip
Spring is +39° warmer
Thursday 77° Low 56° Sunny
Spring is +34° warmer
Friday 80° Low 56° Sunny
Spring is +31° warmer
Saturday 76° Low 56° Sunny
Spring is +35° warmer
Where to Stay

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Temperature
111°F
Warm Hot Boiling
Water Temp 111°F (44°C)
Avg Air Temp 57°F
Above Ambient +54°F
Good soaking conditions September
Access
Closed
Road Access Short Walk
Distance to Road 0.2 mi
Land
Ownership Non-Profit
Agency NGO
Designation PCON
Unit Garcia River Forest
Manager NGO
Protection 2 - Permanent protection, some use allowed
Frequently Asked Questions
What is the water temperature at Point Arena Hot Springs?
Point Arena Hot Springs has a water temperature of 111°F (44°C). This is considered a hot spring, well above body temperature.
Where is Point Arena Hot Springs located?
Point Arena Hot Springs is located in Sonoma County, California at 375 feet elevation, near Sea Ranch. Coordinates: 38.8740°N, 123.5180°W.
How do I get to Point Arena Hot Springs?
Point Arena Hot Springs has Short Walk road access (0.2 mi from the road).
Is Point Arena Hot Springs free to visit?
Point Arena Hot Springs has Closed access. It is managed by NGO.
Is it safe to soak at Point Arena Hot Springs?
With care. At 111°F Point Arena Hot Springs is hot enough to need short sessions, fifteen to twenty minutes, and plenty of water. Enter slowly and get out if you feel light-headed.
Sources: Wikipedia