Point Arena Hot Springs

Sonoma County County, California · Near Sea Ranch
38.8740°N, 123.5180°W · 375 ft
111°F 375 ft Closed Short Walk NGO

Point Arena Hot Springs flows at 111 degrees Fahrenheit along the Garcia River in a remote coastal forest, delivering thermal energy 54 degrees above ambient in a landscape shaped by conservation protection.

The spring emerges at 375 feet elevation through old-growth redwood and mixed coastal forest along the Garcia River, creating a dramatic contrast between superheated waters and the cool, moist environment averaging 57 degrees annually with over 3 feet of precipitation. The 800-foot walk through ancient forest reveals a landscape where conservation priorities now prevail. The springs' lush setting showcases geothermal activity thriving within protected forest.

History of Point Arena Hot Springs

The springs gained fame during California's 1880s-1920s spa boom, when they served as a resort destination. A 1913 California Blue Book described them as one of California's most beautiful health resorts." The springs emerge from geological structures related to regional faulting along the Garcia River and heat circulation through the Mendocino Complex basement rocks. Historic resort development eventually ceased."

Public access is currently closed—the springs reside on Garcia River Forest conservation land where access is restricted to permit existing ecosystem values. The remoteness and conservation status mean these springs remain largely undisturbed, preserving the forest environment that once attracted spa visitors seeking thermal waters in a pristine setting.

Is Point Arena Hot Springs worth visiting?

Best for

  • Hot spring soaking
Point Arena Hot Springs is well suited for hot spring soaking.
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
What to Bring
Swimsuit & towel
Water bottle Stay hydrated, especially in hot water
Trash bag Pack out what you pack in
Water shoes Hot ground near source
References
USGS Quad: (GUALALA 7.5) · PP 492: 47.0 · NOAA: 1.0 · AMS Map: SANTA ROSA
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?
At 111°F, Point Arena Hot Springs is hot enough to require caution. Enter slowly, limit soaking sessions to 15–20 minutes, and stay hydrated. Always tell someone your plans before visiting remote hot springs.
Is Point Arena Hot Springs crowded?
Point Arena Hot Springs sees varying levels of visitors depending on the season and day of the week.
What should I bring to Point Arena Hot Springs?
Essentials for Point Arena Hot Springs: swimsuit, towel, water bottle, a trash bag to pack out what you pack in. The water is over 110°F — test the temperature before entering and watch for scalding near the source.
Temperature
111°F
Warm Hot Boiling
Water Temp 111°F (44°C)
Avg Air Temp 57°F
Above Ambient +54°F
Great soaking conditions March
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