Soak in Arizona Hot Springs
Discover Arizona’s other natural wonder, mineral-rich hot springs.
Immerse yourself and let the serenity of this desert oasis soothe the mind as you emerge from the mineral hot springs relaxed and revived. From deep within the Bradshaw Mountains of Arizona, a mineral elixir debuts above ground in a stunning canyon at Castle Hot Springs. What starts as rain, sinks through cracks in the ground and flows through underground streams to be warmed by the earth and filled with a unique mineral blend.
Find Your Place Among the Hot Springs
First Pool
Closest to the source, the pool averages temperatures between 104-108ºF and is a depth of about 3.5ft. This idyllic pool is the perfect way to ease the mind and relax your muscles in the clear mineral rich water. Reflecting upon a wall of stunning colors as the sound of waterfalls and nature surround you.
Second Pool
As the water cascades into the second pool, the water cools to a comfortable temperature range of 98-102ºF and is about 4ft in depth. This pool is best for extended soaking, floating, and enjoying the canyon walls. Feel the natural desert floor under your feet, grounding you to the environment.
Third Pool
Surrounded by swaying palm trees, this large swimming hole creates an oasis to swim freely in. The water meanders down the canyon into this deep pool where the temperature hovers around 75-90ºF and a depth of 9ft. Join us for guided seasonal paddleboard yoga classes, testing your balance on the water.
Watsu Pool
Discover this small grotto which hosts our signature spa treatment, Watsu Therapy, a water-based bodywork session. While gently supported in the water, the body is guided through slow, rhythmic movements and gentle stretching to release tension by a masseuse.
Unique Mineral Makeup
Sediment
The sediment found at the bottom of the springs is a natural blend of clay, sand, and fine mineral particles deposited by geothermal water as it rises through ancient granite basement rock. Over time, these materials settle on the pool floor and may include traces of quartz, mica, feldspar, silica, and other naturally occurring minerals.
Natural Floor
A natural spring pool floor is relatively uncommon. Most have cement or some engineered floor.
Hydrologic Cycle
The hydrologic cycle is roughly 12,000 years to go from surface water to the confined aquifer deep in the Earth and back to the surface.
No Sulfer Smell
The hot springs are geo-thermal and do not have a sulfur smell, because they are heated by hot rock, not lava.
Minerals & Elements
Many elements and bicarbonates are found in these waters — each with their own natural benefits. For centuries, people have sought out hot springs for bathing, healing, socializing and spiritual intentions. Particularly rich in lithium, magnesium, iron, sodium and calcium, the minerals in these hot springs may help uplift mood, promote calmness, reduce inflammation, heighten senses and improve general wellbeing. Each guest soaking in the hot springs may experience their own journey.
Experience a Contrast Soaking Circuit
Enhance the benefits of soaking with a contrast soaking circuit — that include a warm soak, alternated with a cold-water deluge in a cold plunge. It is a great time to calm your mind, stretch your legs and allow the senses to experience the amazing world you are part of.
Stargazing in the Hot Springs
Famous for dark skies and clear nights, soak in the hot springs while mesmerized by the celestial show above. This truly unique stargazing experience will leave you in awe, while relaxing in warm waters. The hot springs are open all night for your convenience.
Arizona Hot Springs FAQ's
Guests staying at the resort can enjoy soaking in our natural mineral hot springs surrounded by the Sonoran Desert and Bradshaw Mountains. The springs feature multiple pools with varying temperatures and depth, allowing guests to relax, swim, or enjoy a soaking experience.
Yes. Unlimited access to the natural hot springs is part of the Castle Hot Springs guest experience. Our guests can enjoy the mineral-rich pools throughout their entire stay, day and night.
Yes. The hot springs are open throughout the night, giving our guests the opportunity to enjoy an evening soak beneath Arizona’s dark skies. Guests may request a cart service for convenient rides to and from rooms to the hot springs. With the resort’s secluded location and clear desert skies, nighttime soaking can also be combined with stargazing for an unforgettable experience.
Beyond traditional soaking, guests can enhance their wellness experience through a contrast soaking circuit, which alternates between a warm soak and a cold-water plunge. The Watsu Pool also hosts Watsu Therapy sessions, a water-based bodywork treatment offered by the resort in which guests are gently supported and guided through slow movements and stretching in the warm water.
Castle Hot Springs combines natural mineral hot springs with a secluded luxury resort experience. Guests can enjoy multiple natural pools, wellness experiences, stargazing, outdoor activities, and luxury accommodations in one destination, making the hot springs an integral part of the overall luxury resort experience. The hot springs feature naturally heated thermal waters with no sulfuric smell.