8 Person Hot Tub - Comfortably Fits Eight People | Caldera


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Cantabria Utopia Series Spa
Column A
360 View
8 Adults
9' x 7'7" x 38"
74 Jets
Column B


The spacious Cantabria® large hot tub redefines hydrotherapy. It comfortably fits 8 adults and features the UltraMassage® lounge with the customizable UltraMasseuse® System. This jetting system will make you feel like royalty as you create your personal spa experience with six different jet sequences and three speeds.

"The Cantabria is truly the ‘Best-of-the Best’…style, comfort, ease of maintenance, and luxury are all the qualities of this spa."

—Daddyoh, Berkeley County, WV
Best Home Investment Yet
Outsanding quality, very easy to maintain crystal clear water. Have had now for 6 months use it almost every day. Pumps are quiet and very powerful. Up keep is low due to the chemicals needed.
December 20, 2011
Best investment ever
After two years the Hot tub is running smoothly and no issues from the beginning. The service was beyond excellent from dealer service tech (Paul D) and from Watkins. First class all around.
It is a showcase for others who come for a visit they all don't stop talking about it.
Well done.
March 25, 2015
Cantabria Hot Tub
Overall this is a very nice hot tub. It fits our family of 4 quite comfortably and is very relaxing. The lounger works just about all parts of the body and the programmed settings allow for a deeper massage for different parts of the body. The Bluetooth capability for music makes it very enjoyable. We love the lighting and the ease of maintenance on this hot tub. The only negative about this hot tub is the hand jet covers seem to pop off rather easily during use and very often.
November 10, 2014
Ultimate Hot Tub for Entertaining Guests
My husband and I purchased the Caldera Utopia Cantabria back in March 2014, and we're still using it numerous times per week. This is the ultimate hot tub for entertaining guests! It can comfortably seat 8 people, but we've managed to have up to 10 people in it at times. There are so many settings so based on your mood or needs, you can relax in a variety of different seats from the UltraMassage Lounge (best for taller people as shorter people tend to float out of this seat when the jets are on) to the EcstaSeat in the corner where you can relax after a long day of work (it has jets for your feet, back, palms, calves, and neck)! The larger jets can be rotated to control how much water pressure is used because sometimes you just want a gentle jet of water pulsing into your back and sometimes you want lots of jets so it's easy to adjust to exactly what you want. The lights are great for evenings. And the 2 waterfalls are a favorite feature for both adults and especially children (who love to splash around in the falls)! We also purchased the sound system upgrade so we can play music while relaxing in the spa - this was definitely a great add on and worth the extra expense because it's wireless so you can play music from your phone or computer right to the hot tub. With all the amazing aspects of this hot tub come a few words of advice: "normal" usage is 2 people per night for 10-15 minutes. If you are like us and you use the hot tub for an hour or more each time and you also plan to invite the neighbors or have hot tub parties, then you will need to use more chemicals than what the Spa Frog water care system can provide so you'll need to add a few extra teaspoons or tablespoons after each heavy use (4 people for an hour) and you'll actually have to add at least a tablespoon of chlorinating concentrate (or similar chemical) to keep your bromine/chlorine at proper levels or you'll find you'll be emptying and refilling your tub more often than you'd like. And you will also likely encounter the issue of over-foaming, which is caused when the jets are on high and detergents (whether shampoo or body wash or just leftover detergent in bathing suits) creates a ton of foam on top of the water. Kids love it, but it can become annoying so you may want to use a little defoamer to keep the bubbles down. Rinsing off both yourself and rinsing bathing suits on rinse cycle before entering the hot tub will also help keep the bubbles to a minimum. But it's well worth the effort to have this hot tub and it is one of the best purchases we have made! And if you have concerns about the energy efficiency of this model, we were shocked to find that our energy bills did not go up nearly as much as we thought they would - this is one very energy efficient model if it's properly maintained (yes, even in the winter - we enjoyed what we dubbed "snow tubbing" earlier this year). The entire tub is very well insulated, including the cover, which is made out of marine-grade materials, so as long as you cover the tub when it's not being used and keep the temperature constant, your energy consumption will be minimized. We had the electrician install the 50 amp and 20 amp breaker so we could run the jets and the heat pump at the same time. Finally, it is very easy and quick to empty the tub, clean it, and refill it. The reheating part may take up to one full day to get the water up to temperature in the winter, but overall, it takes only a couple of hours to slowly empty and clean the tub and then about 1.5 hours to fill an empty tub. In the end, we absolutely love our Cantabria hot tub and would definitely recommend it to anyone considering a larger hot tub that can accommodate many guests. Our only issue is trying to fend off friends and family who want to visit all the time (we believe just to use our hot tub)! haha
October 4, 2014
vacation at home
Love having a retreat right outside my back door. This is a great spa... easy to take care of water and you do not notice it on your energy bills. Last year we had a polar vortex and never had a problem with the spa.
September 12, 2014
Great tub No service after Sale
I bought my Hot tub in July of 2013. It works great but I had some cosmetic issues with the side panel coming off. I contacted the San Antonio company I bought it from and they said they would check with the manufacturing company. It is now 9 months later and they still have not fixed the tub. I am very disappointed in Sweet water Hot tubs in San Antonio ,Texas. I do not recommend anybody use this company . Sincerely Dr. Nelson
September 9, 2014
wonderful spa
would choose it again and have suggessted it to all of our friends and family
September 8, 2014
This is the One to Get!
This is a great a spa. After owning it for three months I could not think of getting anything smaller in size or features. The one thing to note is that if you're tall the lounger might not be a perfect fit. I'm 6'5" and the lounger is not quite where I'd like it to be.
The jets in the spa are great. I have a had two previous back surgeries and purchased the spa to help with discomfort and lower back pain. This spa has been a huge help reducing pain levels and relaxing sore muscles.
The spa is easy to operate and maintain. has great features, and if you like a lot of jets I don't know that I've seen a better spa out there... and I've looked a lot.
September 5, 2014
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Tech Specs
Seating Capacity
9' x 7'7" x 38"
Water capacity
550 gallons / 2,082 liters
Weight (Dry)
1,461 lbs.
Weight (Filled)
7,448 lbs.*
Hydromassage Jets
1 Euphoria® jet, 2 OrbiSsage® jets, 7 VersaSsage® jets, 4 AdaptaSsage® jets, 4 Euro-Pulse® jets, 56 Euro jets
UltraMasseuse System
6 jetting sequences; 3 speeds
Air Jet System
14 air jets
Jet Pumps
3 ReliaFlo® 2.5 HP (5.2 BHP**); 1 single-speed, 2 dual-speed
Control System
Advent® LCD control system with auxiliary control panel
Circulation Pump:
EnergyPro® system
Heater Output
EnergyPro® system 4,300 watt
Electrical Requirements
230v/50 amp, 60Hz; 230v/70 amp, 60Hz (optional***)
GFCI Sub-Panel
Filter Size
100 sq. ft.
FROG Water Care System
Monarch CD Ozone System
Water Feature
2 Acquarella® waterfalls
Caldera Entertainment Options
Wireless sound system with Bluetooth technology, wireless In-home Dock, Wireless TV
Mulit-color LED Lighting
SpaGlo® multi-zone system; interior and exterior
Energy Efficiency
Fully-insulated with FiberCor™ material, 2 lb. density; Certified to the California Energy Commission (CEC) in accordance with California law
Insulating Cover
3.5” to 2.5” tapered, 2 lb.-density foam core
Spa Shell and EcoTech® Cabinet Options
Champagne Opal, White Pearl or White Sands with Coastal Gray, Espresso or Redwood; Sterling Marble or Tuscan Sun with Coastal Gray or Espresso
Cover Lifter (Optional)
ProLift® III (included)
Steps (Optional)
EcoTech® or Polymer in Coastal Gray, Espresso or Redwood
  • *Filled weight includes the weight of the occupants assuming an average weight of 175 lbs.
  • **Brake Horsepower (BHP) is the horsepower a pump motor achieves for a brief period upon start-up.
  • ***Requires 70amp breaker in order to run the heater at the same time as the third jet pump (lounge seat)