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NEW ENGLAND'S HOME FOR SPAS, SAUNAS & MORE

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At Great Bay Spa & Sauna, we guarantee the highest quality product and the best customer service possible. We pride ourselves on being the hot tub, swim spa, and sauna experts in Portsmouth and all of New England.

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End of Year Holiday Sale

Discover the ultimate luxury this holiday season at Great Bay Spa and Sauna's End of Year Holiday Sale. Save thousands on top-quality hot tubs, swim spas, and saunas, ensuring a happier and healthier start to the new year. Don't miss out on these big savings on our major products!

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SHOP HOT TUBS

Discover the ultimate lifestyle of relaxation and socializing with hot tub ownership. At Great Bay Spa & Sauna, we believe hot tubs are more than just a product, they're a way of life.

BEST SELLING HOT TUBS

We are here to help! We know shopping for a hot tub can be confusing and complicated. Here are the best selling hot tubs for your convenience.

NOT SURE WHAT YOU NEED?

Discover the ultimate destination for hot tub buying information. Explore our Sundance® models and we'll do our best to give you a showroom experience online. The hot tub learning resource center for owners and buyers is a comprehensive web page filled with resources to make your buying journey a breeze.

Build the Perfect Hot Tub

View our current sales specials happening now. We offer the best possible price on all products we sall. View our current sales on selected products happening now and save money!

Design Your Own Hot Tub
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We purchased a hot tub several years ago and continue to visit regularly for supplies. They have been consistently helpful, friendly, always fair, and full of integrity.

Pauliina S.

Optima Owner
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SHOP SWIM SPAS

Hydropool Swim Spas are designed with luxury and fitness training in mind. One of the easiest swim spas to maintain, these self-cleaning swim spas clean 100% of the water in the spa in a mere 45 minutes, so that you can spend your time enjoying the swim spa.

BEST SELLING SWIM SPAS

We know shopping for a swim spa can be confusing and complicated. Here are the best selling swim spas for your convenience. Have questions? We are here to help!

SHOP ACCESSORIES & WATER CARE

We sell spa covers, cover lifts, steps, spa maintenance products, sanitizing systems, filter cartridges, aromatherapy, and more. Have questions? Visit our hot tub resource center to learn more!

Accessories

Hand Skimmer

Hand Skimmer

This short 2' handled spa net is designed for removal of light debris. The compact size of this...

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Zorbie® Hot Tub Water Bobble™

Zorbie® Hot Tub Water Bobble™

Here it is... The World Famous Water Bobble for Spas! When properly placed in the skimmer, the...

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Pool and Spa Vaccum

Pool and Spa Vaccum

Easy to use manual pool and spa vacuum FOR MINOR DEBRIS: The GAME handheld pool and spa vacuum...

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Water Care

SunPurity™ Cartridge

SunPurity™ Cartridge

Sundance® SunPurity™ mineral sanitizer cartridge for Sundance® Spas Mineral purification is a...

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ClearRay® Replacement Bulb

ClearRay® Replacement Bulb

This is an OEM ClearRay® Bulb and not an aftermarket knockoff. Yearly replacement is required to...

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Water’s Choice™ Spa Enzymes

Water’s Choice™ Spa Enzymes

Switching Over to Waters Choice Enzymes If you are switching over to Waters Choice enzymes from a...

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Filters

Sundance® – 6473-164

Sundance® – 6473-164

*Note: Inner Portion Only. Outer Filter Sold Separately. Can be used on the Spas that used the...

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Sundance® – 6473-165 – 80 ft²

Sundance® – 6473-165 – 80 ft²

*Note: Outer Portion Only. Inner Sold Separately (Link to A81) 2009+ Sundance® 880 Series Spas...

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Sundance® Spas MicroClean® Filter – 6540-502

Sundance® Spas MicroClean® Filter – 6540-502

MicroClean Filtration Systems filter thoroughly from two directions through pleated and microfiber...

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SHOP SAUNAS

The Clearlight Sanctuary™ Full Spectrum saunas offer advanced near, mid and far infrared technologies. Our robust True Wave™ Full Spectrum heating system provides all wavelengths 100% of the time to optimize your sauna session.

BEST SELLING SAUNAS

Buying a sauna can be confusing. But we're here to help! Here are the best selling saunas below for your convenience.

OUTDOOR FURNITURE

Our experienced team is waiting to walk you through our casual outdoor furniture options. We’ve got a style to suit you, and all the pieces you’ll need to create your ideal backyard. Easily design a comfortable space for relaxing any day of the week.

BEST SELLING FURNITURE

Not sure what to look for? Here are our best selling furniture for your convenience. Transform your entire backyard into its own retreat. Combine a hot tub with outdoor furniture to capitalize on feelings of peace and comfort.

CUSTOMER TESTIMONIALS

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