About Casa Diablo Hot Springs And Geyser
Casa Diablo Hot Springs And Geyser sits amid the rugged landscape near Mammoth Lakes, offering a powerful glimpse into California’s geothermal forces. The spring’s scorching water, reaching nearly 200°F, bubbles vigorously, creating an intense and authentic volcanic experience unlike most hot springs in California. Its raw, untamed energy draws you close to nature’s elemental power.
Getting There
To reach Casa Diablo, you follow a rough dirt road off Highway 395, accessible by most vehicles but requiring caution in wet conditions. Parking is limited and primitive, as the area remains largely undeveloped. A brief walk across uneven terrain takes you to the springs and geyser, adding a touch of adventure to your visit.
What to Expect
The water here is extremely hot—far too hot for soaking—so you witness its fierce heat up close rather than swim in it. The surrounding landscape is sparse and volcanic, with steam rising from vents and a few pools where cooler water collects nearby. Expect a quiet, rugged atmosphere, with no built facilities or crowds, offering a raw, immersive experience of California swimming holes in a wild setting.
Tips for Visitors
Visit during cooler months for a more comfortable hike and to avoid extreme heat. Bring sturdy footwear for uneven ground and plenty of water, as there are no amenities. Respect the highly variable water temperatures and keep a safe distance from the geyser and hot pools to avoid burns. There is no entry fee, but adhere to any posted regulations to protect this dynamic geothermal area.