With over 300 known hot springs, California is home to the second largest concentration of thermal pools in the U.S. and only features fewer hot springs than its neighbor, Nevada. Still, with such an extensive list of hot springs, each offering its own unique experiences, visitors are sure to find a natural heated reserve perfect for them.
However, before beginning their journey into the remarkable healing properties of California hot springs, visitors should first understand the different varieties and regions of the state's thermal pools.
From tucked-away primitive pools to full-service luxurious thermal spas, this is everything you need to know about hot springs in California.
California Hot Springs Map
Types of Hot Springs in California
With over 300 unique hot springs, California's thermal baths offer experiences as varied and colorful as the state's picturesque landscapes. While there are many differences between each region's thermal destinations, all of California's hot springs can typically be classified as one of three varieties — a primitive pool, a community spring, or a hot spring resort.
Select a type below to learn more about the different soaking experiences.
Primitive Hot Springs
Primitive hot springs are the most natural occurrence of the thermal bath phenomenon. However, they are typically undeveloped destinations and lack additional comforts of onsite services or amenities.
While these pool varieties are the most rustic of California's hot spring offerings, they are also the most rewarding as they often require lengthy and rigorous hikes to reach. Additionally, since they lack any maintenance or regulation from any formal body, primitive hot springs are also free to access, making them the most economically-friendly way to explore the state's geothermal pools.
Community Hot Springs and Spas
Featuring slightly more amenities than the primitive pools, community hot springs are small facilities maintained as a local business. These facilities often include base amenities such as changing rooms, bathrooms, and maintained pools, but they can also feature luxurious additions that include onsite spa services.
These comfortable soaking destinations can be found throughout the state, including in all of California's major cities. However, for an authentic hot springs experience, the community springs in the state's small towns offer the optimal setting and provide a tranquil soak overlooking California's picturesque countryside.
Hot Spring Resorts
Hot spring resorts can be found throughout California and offer visitors the greatest convenience and comfort for submerging in the state's natural thermal waters. These luxurious facilities often include onsite lodging and provide a full-service stay that promises relaxation and ambient tranquility.
When staying at a hot spring resort, visitors receive a heightened experience as they engage the facility's opulent services and amenities, which often include restaurants, spa treatments, and plenty of offsite excursion opportunities.
When seeking a wellness retreat or a planned itinerary that combines an exploration of the countryside with the soothing powers of a hot spring soak, booking a room at one of the state's hot spring resorts is the best way to engage the relaxing nature of these thermal pools.
Eastern California Hot Springs
Northern California Hot Springs
Wilbur Hot Springs
Type: Resort
Opening Hours: Day Use: 10 AM – 5 PM; overnight stays min. 2 nights
More InfoSierra Hot Springs
Type: Resort
Opening Hours: Thu–Sun, 10:30 AM – 5:30 PM; evenings 4 PM – 11 PM
More InfoHarbin Hot Springs
Type: Resort
Opening Hours: 24/7 year-round; reservation + membership required
More InfoIndian Springs Calistoga
Type: Resort
Opening Hours: Year-round; spa guests with 50-min treatment can get pool pass
More InfoCentral California Coast Hot Springs
Sycamore Springs
Type: Resort
Opening Hours: Daily: 8:00 AM – Last reservation at 10:45 PM
More InfoMorton Warm Springs
Type: Community
Opening Hours: Seasonal (May–Sept); pool hours 10 AM – 5 PM
More InfoTassajara Hot Springs
Type: Community
Opening Hours: Guest season (summer); reservations required
More InfoEsalen Hot Springs
Type: Community
Opening Hours: Public night bathing 1–3 AM (currently closed until April 2025)
More InfoCentral California Coast Hot Springs
Sycamore Springs
Type: Resort
Opening Hours: Daily: 8:00 AM – Last reservation at 10:45 PM
More InfoMorton Warm Springs
Type: Community
Opening Hours: Seasonal (May–Sept); pool hours 10 AM – 5 PM
More InfoTassajara Hot Springs
Type: Community
Opening Hours: Guest season (summer); reservations required
More InfoEsalen Hot Springs
Type: Community
Opening Hours: Public night bathing 1–3 AM (currently closed until April 2025)
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