Santa Ysabel Springs, also known as Sulphur Springs, delivers 92°F thermal water in the rolling hills east of Paso Robles. The 31-degree temperature rise above ambient marks a noticeable thermal feature in wine country.
The spring emerges at 858 feet elevation just 156 feet from Hanging Tree Lane. The landscape consists of grassy rolling hills typical of the Paso Robles region, with the small thermal pool surrounded by oak and dry chaparral vegetation typical of central California's interior valleys.
History of Santa Ysabel Springs (Sulphur Spr)
Named for its sulphur content, Santa Ysabel Springs sits in the broader San Luis Obispo County thermal system. The Paso Robles region has been recognized for geothermal activity since Spanish colonial times.
The spring lies only 156 feet from Hanging Tree Lane, making it highly accessible. Visit spring or fall for comfortable visiting conditions. The nearby Paso Robles wine region and Morro Bay beaches offer additional recreation options.
Is Santa Ysabel Springs (Sulphur Spr) worth visiting?
Best for
- Warm-water soaking
- Overnight camping trips
Santa Ysabel Springs (Sulphur Spr) is well suited for warm-water soaking and overnight camping trips.
Annual Precip: 11.3 in
Annual Snow: 0.0 in
December
Air 48°F · Water 92°F · +44° contrast
January
Air 49°F · Water 92°F · +43° contrast
February
Air 51°F · Water 92°F · +41° contrast
December offers 24°F more contrast than August
Overview
Cerro Alto Campground is a well-known hiking and mountain biking paradise. It is located a short distance from the sandy beaches of Morro Bay, where visitors enjoy surfing, fishing, kayaking, sailing, scuba diving and more. While the campground offers a serene, relaxed environment, both Morro Bay and the nearby town of Atascadero offer numerous dining opportunities, shopping, museums and other activities. Wine Tasting in the Tempelton, Paso Robles Area is also a very popular experi...
Reserve on Recreation.gov →
Swimsuit & towel
Water bottle
Stay hydrated, especially in hot water
Camping gear
Nearby camping at Cerro Alto Campground
Trash bag
Pack out what you pack in
1 miles from Paso Robles, CA
USGS Quad: TEMPLETON 7.5 · PP 492: 97.0 · NOAA: 4.0 · AMS Map: SAN LUIS OBISPO
What is the water temperature at Santa Ysabel Springs (Sulphur Spr)?
Santa Ysabel Springs (Sulphur Spr) has a water temperature of 92°F (33°C). This is a warm thermal spring.
Where is Santa Ysabel Springs (Sulphur Spr) located?
Santa Ysabel Springs (Sulphur Spr) is located in San Luis Obispo County, California at 858 feet elevation, near Paso Robles. Coordinates: 35.5820°N, 120.6660°W.
How do I get to Santa Ysabel Springs (Sulphur Spr)?
Santa Ysabel Springs (Sulphur Spr) has Short Walk road access, with the nearest road being Hanging Tree Lane (510 ft from the road).
Can I camp near Santa Ysabel Springs (Sulphur Spr)?
Yes, Cerro Alto Campground is located nearby (11.4 miles away).
Is it safe to soak at Santa Ysabel Springs (Sulphur Spr)?
Santa Ysabel Springs (Sulphur Spr) is generally safe for soaking at its recorded temperature. Access may be on private land or unconfirmed — verify current conditions before visiting. Always tell someone your plans before visiting remote hot springs.
Is Santa Ysabel Springs (Sulphur Spr) crowded?
Santa Ysabel Springs (Sulphur Spr) sees varying levels of visitors depending on the season and day of the week.
What should I bring to Santa Ysabel Springs (Sulphur Spr)?
Essentials for Santa Ysabel Springs (Sulphur Spr): swimsuit, towel, water bottle, camping gear, a trash bag to pack out what you pack in.