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CALDERA® SPAS

Utopia® Series

The very best of Caldera: the full Hot Tub Circuit Therapy® massage, the Advent® touchscreen, and FreshWater® salt water care with Smart Monitoring, all standard.

Shop by Size

From the three-seat Ravello™ to the eight-seat Cantabria®, Utopia comes in a size for a couple or a crowd. Filter by size to find the hot tub that fits your space.

Find the Right Hot Tub

Most people only buy a hot tub once, so it’s normal not to know where to start. These six questions cover what actually matters. Answer them and you’ll know what to look for.

How many people will use it?

Choose based on a normal week. This one answer narrows the field more than any other.

What do you want it to help with?

Back pain, arthritis, stress relief, better sleep. Each one has a straight, sourced answer in Hydrotherapy 101.

Lounge seat, or open seating?

A lounge lets one person recline full-length. Open seating fits more people. Neither is better, and it’s the main reason to try a few spas before choosing.

Which features matter most?

Massage systems, water care, lighting, audio, smart controls. Don’t get hung up on jet count, though; where the jets sit and how they’re designed matters far more than how many there are.

Do you want salt water care?

Softer-feeling water, far less dosing, and up to a year between water changes. On Utopia the FreshWater® Salt System is included, so this one’s already answered.

What’s your timeframe?

Ready for numbers? Get pricing on the models you’re weighing. Still researching? Take the full guide with you. Either answer is a good answer.

Easy water care with the FreshWater® Salt System

Salt water care turns a small amount of dissolved salt into chlorine automatically, so you spend far less time on upkeep and add fewer chemicals. On the Utopia series it comes standard.

How the Salt System works

A titanium cartridge converts dissolved salt into chlorine as the water circulates, and it’s owner-replaceable about every four months. Softer-feeling water, less dosing, and up to a year between water changes. Learn more about the Salt System.

Add FreshWater® IQ for hands-off testing

Hourly Smart Monitoring comes standard on every Utopia model, and you can add Dosing to complete FreshWater® IQ on top of the salt system. The spa tests itself, shows what it needs on the Advent touchscreen or app, and corrects pH at a tap. Learn more about FreshWater IQ.

A Caldera Utopia Geneva spa at dusk with its blue lights on and the jets running

What our customers say

Five-star Google reviews from Tennessee customers.

“Kevin at Hot Tubs of TN made our Caldera hot tub purchase easy and enjoyable from start to finish.”

Buyer in Franklin Franklin Showroom ·

“He really knows his stuff, took the time to explain everything, and never made me feel pressured.”

Chelsea Herrmann Knoxville Showroom ·

“Been researching for a long time, and Adam helped make my decision very easy.”

Jamie Hughes Franklin Showroom ·

Frequently Asked Questions

Quick answers to the hot tub questions we hear most. The Learning Center covers each one in depth.

How much does a Utopia hot tub cost?

Utopia is Caldera’s flagship series, so it sits at the top of the Caldera range. Our cost guide walks the tiers with real numbers. We don’t price a specific model sight-unseen because your real cost depends on the model, the features you choose, and what your site needs. Get pricing and we’ll quote your exact setup, no pressure and no obligation.

Will it cost a fortune to heat in winter?

Cold climates cost more, but Utopia is built for it. The EnergyPro® circulation pump returns most of its energy to the water as heat, and FiberCor® insulation with a WeatherPro® cover holds it in. The cover is the biggest daily factor.

Is the salt system included?

Yes. The FreshWater® Salt System comes standard on the Utopia series, so softer-feeling water and far less dosing are built in, not an upcharge. Add FreshWater® IQ for hands-off testing through the Advent touchscreen.

What size Utopia do I need?

The series runs from the three-seat Ravello™ up to the eight-seat Cantabria®, with lounge and open-seating layouts in between. 2 to 3 seats fits couples and small spaces, 4 to 6 fits most families, and 7 to 8 is built for entertaining. If you’re between two sizes, choose based on a normal week.

A Caldera Utopia Geneva spa on an evening patio

Try Before You Buy

Heated and ready year-round

The best way to know if a hot tub fits you is to experience it in person. We keep them heated and ready year-round so you can try before you buy.

Book a Test Soak

Ready to get started?

Come see the heated spas in person at one of our six Tennessee showrooms, or book a free Test Soak and try one before you buy.