Cottonwood Outdoor Hot Tub + Cold Plunge Tub

Hydro Systems’ Cottonwood Outdoor Tub represents the peak of duality—where opposing forces, like heat and cold, come together in perfect harmony. Rooted in the ancient practice of contrast therapy, which alternates between hot and cold water immersion to enhance circulation and support muscle recovery, the Cottonwood offers a bold, modern interpretation of this time-honored wellness tradition.

Inspired by the historic healing waters of Colorado’s Cottonwood Hot Springs, this outdoor tub captures the essence of its namesake. The hot side gently warms to 104˚F degrees, offering soothing relaxation, while the cold side invigorates with icy waters as low as 37˚F degrees, delivering the ultimate thermal contrast. This interplay of temperatures creates a restorative experience, heightened by the natural beauty of your surroundings. With 25 precision-placed jets—12 for the cold side and 13 for the hot side—you can target specific areas for personalized hydrotherapy tailored to your wellness needs.

At 91 by 91 inches, the Cottonwood is the largest tub in Hydro Systems’ Outdoor Collection, offering expansive space for a deeply immersive soak and effortless transitions between hot and cold zones. This extraordinary vessel brings the ancient benefits of contrast therapy right into your outdoor oasis—where innovation, wellness and nature become one.

INSPIRATION | Set against the dramatic peaks of Colorado’s San Isabel National Forest, Cottonwood Hot Springs has been a destination for healing and renewal since 1878, making it one of the state’s oldest hot springs. Once serving as a hotel, sanitarium, and a sacred gathering place for the Ute Indians, it holds a rich and storied past. Today, this historic retreat offers a tranquil escape with its therapeutic soaking pools, spa services, boutique, and cozy overnight accommodations. This timeless mountain sanctuary represents the height of duality—where contrasts like hot and cold, hard and soft converge in perfect harmony. It is this balance that inspired the creation of Cottonwood, the largest and most luxurious outdoor contrast therapy tub in our Outdoor Collection.