Caldera Paradise Series

Short answer

The Paradise Series has 6 hot tubs, from the 3-seat Kauai to the 7-seat Salina. They hold 230 to 420 gallons.

Updated October 2026By the HotTubFinder research desk

Models

Seats

3-7

Jets

31-46

Build checks

1 of 8

Caldera Spas

Every model Caldera Spas sells in the Paradise Series, smallest to largest. Seats, size, jets and pumps are from Caldera Spas’ own spec pages; each figure's dot links its source.

Caldera Spas Martinique from above — Size is length x width in inches, with the height under it. Pump hp is continuous-duty horsepower ("est." = converted from a peak rating). Shell warranty is the structure term in years. A dash means the maker does not publish the figure.

The 6 hot tubs in the Paradise Series

Caldera Spas Kauai	3	84 x 6529.5 high	230	31	1	2est.	1	10	—
Caldera Spas Martinique	5	89 x 7634 high	285	34	2	—	1	10	—
Caldera Spas Makena	6	89 x 8936 high	395	46	2	5.2est.	1	10	—
Caldera Spas Seychelles	6	84 x 8436 high	330	43	2	—	1	10	—
Caldera Spas Reunion	7	84 x 8436 high	350	38	2	—	0	10	—
Caldera Spas Salina	7	89 x 8936 high	420	40	2	5.2est.	0	10	—

What sets the Paradise Series apart?

Mid-upper line with 4–6 therapy stations, SpaGlo lighting and FreshWater IQ-ready plumbing.

Full-size pumps and circulation. Most models have two ReliaFlo 2.5 HP pumps plus an EnergyPro circulation pump.
Same shell warranty as Utopia. 10-year shell structure, 7-year surface and 5-year components.

What to watch

Salt system optional. The spas are FreshWater IQ ready, but the salt system and smart monitoring cost extra.
Cabinet warranty shorter. 3-year EcoTech cabinet coverage versus 5 years on Utopia.
Button controls. Advent LCD panel with hard buttons and soft keys rather than the Utopia touchscreen.

How do the 6 models differ?

Seating runs from 3 in the Kauai to 7 in the Salina. Kauai, Martinique, Makena and Seychelles have a lounger; Reunion and Salina are open seating. Kauai runs one jet pump; Martinique, Makena, Seychelles, Reunion and Salina run two jet pumps.

Jet counts run from 31 (Kauai) to 46 (Makena). More jets on the same pumps split the same flow across more nozzles, so sit in the seats you would use and run the jets before you choose by the count.

How is Caldera Spas built?

Caldera Spas passes 1 of our 8 build checks. They apply to the whole brand, so they hold for every model above. The evidence for each is on the Caldera Spas brand page.

How it’s built

1 of 8 pass

Eight things that decide whether it lasts. Tap any for the detail.

Self-supporting shellFantasy shells stand alone; acrylic models lean on a framePartly

The rotomolded Fantasy shell needs no backing or extra support. The acrylic lines are packed with loose FiberCor fill, which carries no load, so a wood frame and base pan hold the shell up. Caldera does not publish what the acrylic shell itself is backed with.

Applies to: Confirmed for the rotomolded Fantasy series. For the acrylic Utopia, Paradise and Vacanza series it's very likely but isn't confirmed

What this means, and how to check it →calderaspas.com ↗calderaspas.com ↗

Clamped plumbingMostly glued joints, with unions at the pumps and heaterPartly

Caldera's leak warranty covers glue joints and bonded parts, so assume solvent-welded plumbing. Threaded unions sit on both sides of every pump and the heater, so those pieces come apart for service. Whether the jet lines use clamped barbs is not documented either way.

Applies to: Acrylic Utopia, Paradise and Vacanza (the warranty wording is identical across them); Fantasy not assessed

What this means, and how to check it →calderaspas.com ↗waves-console-watkins-wellness.s3.amazonaws.com ↗

Manifold-fed jetsCaldera Spas doesn't publish this. Ask the dealerNot published

Caldera releases no plumbing schematic, cutaway or exploded parts view. The manuals confirm only multiple pumps and diverter valves feeding jet groups, which happens in both layouts. Nothing available settles whether the jets run off a manifold or down a chain.

Applies to: All models; no series could be confirmed

What this means, and how to check it →waves-console-watkins-wellness.s3.amazonaws.com ↗calderaspas.com ↗

Standard partsWatkins-branded parts throughout: easy to buy, not industry standardPartly

Jets, pumps, heater and controls all carry Caldera or Watkins names instead of Waterway, Balboa or CMP. Online retailers sell those parts to anyone, no dealer account needed. You pay Caldera prices and cannot drop in a generic equivalent.

Applies to: All models

What this means, and how to check it →waves-console-watkins-wellness.s3.amazonaws.com ↗calderaspas.com ↗

Compression-fitted jetsOlder jets bolt in with a nut; current jet bodies aren't documentedPartly

Parts sellers list Caldera's Euphoria jet with a body nut and gasket, and older Euro Blaster jets with threaded wall fittings. How the current Euro and AdaptaSsage bodies attach isn't published. Nothing shows glued bodies.

Applies to: All series

What this means, and how to check it →hottuboutpost.com ↗hottuboutpost.com ↗

Adjustable jetsSome jets adjust; most jets on the big models do notPartly

AdaptaFlo, AdaptaSsage and VersaSsage jets adjust by rotating the fascia ring. Euro Directional and Euro-Pulse jets have no pressure control, and they are about 80 percent of the jets on a Cantabria. Diverter valves and air controls handle whole zones instead.

Applies to: Acrylic Utopia, Paradise and Vacanza; Fantasy not assessed

What this means, and how to check it →waves-console-watkins-wellness.s3.amazonaws.com ↗calderaspas.com ↗

Service networkYour dealer services it, with a factory line as backupYes

Warranty work runs through the selling dealer or an authorized service agent, with parts, labor and parts freight covered. Watkins keeps a customer service line for owners whose dealer will not perform. A repair by anyone else voids the warranty.

Applies to: All models, US market; the warranty terms are US-specific

What this means, and how to check it →calderaspas.com ↗waves-console-watkins-wellness.s3.amazonaws.com ↗

American made?Built in Vista, California and Tijuana, MexicoPartly

Vista, California: Watkins headquarters and plant; Watkins doesn't say which collections are built here. Tijuana, Mexico: Watkins plant; trade press ties its 2004 facility to the Caldera purchase.

Applies to: All models. Caldera doesn't publish a country of origin by model or series, so this covers the brand's stated factory, not each model

What this means, and how to check it →hotspring.com ↗sparetailer.com ↗

Other Caldera Spas hot tubs

Caldera Spas also sells Fantasy Series (5), Utopia Series (6) and Vacanza Series (6). Every model is on the Caldera Spas hot tubs page.

Side by side with a rival: Hot Spring vs Caldera Spas.

Sources

Caldera Spas Kauai product page calderaspas.com · checked September 2026seats, size, jets and pumps
Caldera Spas Martinique product page calderaspas.com · checked September 2026seats, size, jets and pumps
Caldera Spas Makena product page calderaspas.com · checked September 2026seats, size, jets and pumps
Caldera Spas Seychelles product page calderaspas.com · checked September 2026seats, size, jets and pumps
Caldera Spas Reunion product page calderaspas.com · checked September 2026seats, size, jets and pumps
Caldera Spas Salina product page calderaspas.com · checked September 2026seats, size, jets and pumps
Paradise Series limited warranty calderaspas.comwarranty terms