There’s something magical about finding a hidden, free hot spring nestled in the grandeur of the Sierra Nevada.
Rock Tub Hot Springs, also known as Whitmore Hot Springs, is one such gem, offering a perfect blend of relaxation and stunning natural beauty.
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Let me take you on a little journey to this wonderful little place.
Getting to Rock Tub Hot Springs
Finding it is part of the adventure.
From Mammoth Lakes, it’s just a short 15-minute drive.
Take US-395 S and turn left onto Benton Crossing Road.
After 1.2 miles, you’ll turn left onto a dirt road, Whitmore Tubs Rd.
After about 1 mile, turn right and follow it for about 0.2 miles until you reach the parking area.
The hot spring is on the left side, between 2 parking areas.
If the air is cold, you’ll see the steam rising from the water.
The Area and Scenery
As soon as you step out of your vehicle, you’re greeted by stunning views of the Sierra Nevada.
The hot spring is surrounded by open land, with snow-capped peaks in the distance and a vast open sky.
It’s a place where you can truly enjoy the beauty of nature and let peace and bliss surface.
The Warm Embrace of the Water
The water in Rock Tub Hot Springs is wonderfully warm, usually around 100-104°F (38-40°C).
There’s a pipe that leads from the thermal water source to the tub, so if the water gets too hot, you can always move it aside to cool down the water.
Whether it’s a chilly morning or a crisp evening, slipping into the hot spring feels like a warm embrace.
Eastern Sierra’s weather can be unpredictable, with warm summers and cold winters, so always check the forecast before you head out.
Camping and Boondocking
One of many reasons why Rock Tub Hot Springs is a must-visit, is the freedom to camp or boondock on the surrounding public land.
I get to choose to soak in the tub and enjoy the expansive view at sunset, in the middle of the night under the stars, at sunrise, or all of the above when I boondock here.
Just remember to follow Leave No Trace principles to keep this special place pristine for everyone.
Nearby Hot Springs
If you’re a hot spring enthusiast like us, you’ll be thrilled to know that Rock Tub is just one of many free hot springs in the area.
Here are a few others worth checking out:
- Wild Willy’s Hot Springs (aka Crowley Hot Springs)
- Shepherd Hot Springs
- Hilltop Hot Springs (Pulkey’s Pool)
- Crab Cooker Hot Springs
- Rock Tub Hot Springs (aka Whitmore Hot Springs)
Geological Origins of the Hot Springs
Why does this area have so many hot springs?
It’s all thanks to the geothermal activity beneath the Earth’s surface.
Before you soak in the soothing waters of Rock Tub Hot Springs, it’s fascinating to understand how these natural wonders came to be.
The hot springs in the Mammoth Lake area are closely linked to the geological forces that formed the majestic Sierra Nevada.
Tectonic Activity and Fault Formation
The Sierra Nevada mountain range was sculpted over millions of years by tectonic activity, resulting in the uplifting and tilting of the Earth’s crust.
During this process, faults and fractures were created, providing pathways for groundwater deep underground.
Geothermal Heating
As groundwater circulates through these fault lines, it encounters heat sources such as magma chambers and volcanic activity beneath the Earth’s surface.
This intense heat warms the groundwater, turning it into the hot springs we enjoy today.
Connection to Mammoth Lake’s Landscape
The hot springs are not just isolated natural phenomena but are intimately connected to the geological history of the Mammoth Lakes area.
So, as you soak in the warmth of Rock Tub Hot Springs, remember that you’re experiencing a unique part of Eastern Sierra’s geological story.
Discovered centuries ago by Native Americans, these springs have been cherished for their healing properties ever since.
Most remain free and clothing-optional, allowing for a unique and liberating experience.
Tips for a Safe Hot Springs Visit
Visiting Rock Tub Hot Springs is a delightful experience, but there are a few things to keep in mind to ensure your visit is safe and enjoyable:
- Dirt Road Access: The road to the hot spring is unpaved and can be rough. We’ve been here in the snow with a sedan, and this time with our van in the summer. But just note that it can get difficult at times.
- No Street Signs: There are no signs marking the hot spring, so use GPS coordinates or detailed directions.
- Bring Water: There are no facilities at the hot spring, so bring plenty of drinking water.
- Slippery Tub: The rocks can be very slippery in the tub, so be careful when entering and exiting the tub.
- Dizziness: The warm water can cause lightheadedness. If you feel dizzy, sit down and put your head between your legs, or lay down and lift your legs up. People with low iron levels are particularly susceptible.
- Nudity: Most public free Hot Springs are clothing-optional, so be aware, or celebrate, that nudity is common here.
- No Glass Containers: Please, no glass containers by the tub. If they break, it can make the tub dangerous for everyone.
- Cell Reception: There are 1-2 bars of Verizon reception in the immediate area. This is where I’m writing this blog! But for your safety, it’s wise to download offline maps beforehand.
Water Conditions and On-Line Reviews
Before your visit, you might come across reviews mentioning small bugs in the water or lukewarm temperatures.
However, it’s important to note that conditions can vary depending on the time of year and other factors.
Here’s what you can expect as of June 2024:
Current Conditions:
- No Bugs: As of now, there are no bugs in or out of the water. It’s June, and there’s very little mosquito activity.
- Hot Water: The water temperature is on the very hot side. This morning, several visitors found the water too hot for a lengthy soak. Some guests had to leave without soaking, while others could only stay in the water for 5-10 minutes.
- Clean Water: The water is clean but has algae growth, and, therefore, the tub is very slippery.
Nature’s Variability:
Nature is ever-changing, and conditions can fluctuate.
Be prepared for varying conditions and enjoy the natural beauty of Rock Tub Hot Springs!
Hot Spring Summary
Rock Tub Hot Springs is cozy, comfortably fitting about 4-6 people.
Its convenient location allows you to drive right up to the tub.
The open setting offers a perfect blend of accessibility and seclusion.
I love being able to see how many people are in the tub to decide when to go in.
There’s nothing quite like soaking in the hot water while taking in the expansive views of the Sierra Nevada.
Final Thoughts
Rock Tub Hot Springs in Mammoth is a perfect spot for those seeking the simple bliss of nature’s wonders.
Its stunning scenery, warm waters, and easy access make it an ideal destination for both quick visits and overnight stays.
In the spirit of dolce far niente, the sweetness of doing nothing, I invite you to slow down and savor the moment while here.
Whether you’re soaking in the tub, camping under the stars, or simply enjoying the breathtaking views, this hidden gem offers a sanctuary for relaxation and reflection.
Another convenient natural retreat that you can drive up to is Keough Hot Springs, which is featured in my recent blog, “Real Guide to the Free Keough Hot Springs+,” is just another must-visit perfect spot to drive right up to the hot spring.
Located just about 9 minutes south of Bishop, be sure to check out my guide for more details on this natural escape in Eastern Sierra!
Happy soaking!
Have you been to any hot springs in the Mammoth lakes area? Which is your favorite? Please share in the comments below.
Q & A Section
How do I get to Rock Tub Hot Springs in Mammoth Lakes, California?
Rock Tub Hot Springs is about a 15-minute drive from Mammoth Lakes. Take US-395 S, turn left onto Benton Crossing Road. After approximately 1.2 miles, turn left onto a dirt road, Whitmore Tubs Rd. After about 1 mile, turn right and follow it for about 0.2 miles until you reach the parking area. The hot spring is on the left side, between two parking areas. GPS Coordinates: 37.64822621008261, -118.80580730224229
What is the water temperature at Rock Tub Hot Springs?
The water temperature at Rock Tub Hot Springs averages around 100-104°F (38-40°C). If it gets too hot, you can move the tube from the thermal water source aside to cool it down.
Can you camp near Rock Tub Hot Springs?
Yes, you can boondock or camp overnight for free on the public land surrounding Rock Tub Hot Springs. Remember to follow Leave No Trace principles to keep the area pristine.
Are there other free hot springs near Mammoth Lakes?
Yes, other nearby hot springs include Wild Willy’s Hot Springs (aka Crowley Hot Springs), Shepherd Hot Springs, Hilltop Hot Springs (aka Pulkey’s Pool), Crab Cooker Hot Springs.
Is it safe to bring glass containers to Rock Tub Hot Springs?
No, bringing glass containers is prohibited at all natural hot springs. If the glass breaks, it can make the hot spring unsafe for everyone. The tip is to pour your beverage into a plastic container before heading to the springs.
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