The Steep Ravine Hot Springs is hidden behind a huge boulder in Stinson Beach. They can only be accessed during low tide. Mind you, it’s well-known so it can get crowded. Still, it’s a beautiful spot, whether others are there or not.
People from all over the world travel to the Upper Napa Valley to experience the Calistoga Spa Hot Springs’ four alluring geothermal mineral pools. The water temperature can get as high as 104°F/40°C. Book a room for as low as $197.00 and stay overnight.