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View our current sales specials happening now. We offer the best possible price on all products we sell. View our current sales on selected products happening now and save money.Shop Current Specials
We proudly feature these amazing, market-leading brands.
Since its founding in 1979, Sundance® Spas has been an industry leader in innovations focused on enhancing your hot tub experience.Shop Sundance®
Hydropool Swim Spas are all-in-one solutions that provide year-round access to a variety of aquatic activities as well as relaxation and family play time.Shop Hydropool
Whether you go for the smooth lines of the Cambridge collection, the New England look of our Adirondack line, or something else, you'll be satisfied with the style and durability of outdoor Seaside Casual Coastline Furniture. Choose from one of 15 high-quality collections.Learn More
With more than 100 years of experience, you can trust Helo Saunas are the highest quality saunas available.Shop Helo Saunas
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
From purchase to delivery and setup, it was a very good experience. Scheduling is tough these days but GBS&S was honest and set realistic expectations. The delivery and setup crew was on time, professional and careful. We love our Tylo sauna.
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.
The guys in parts and service are extremely knowledgeable and helpful. My tub would be dead in the water, so to speak, without them!
Great Bay and specifically Jessica in sales did an awesome job of getting me a world-class sauna. Couldn’t be happier and highly recommend them/her.
Great staff. Professional and friendly. Was able to try out a swim spa and hot tub on site. Answered all our questions.
Super sales team! Great prices! Service crew best in the seacoast! My Sundance spa rocks! 15 years old and. Only minor parts have been replaced. If you are looking for a spa Great Bay is your first choice!
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Hello, Great Bay Spa & Sauna customer!
We will be moving to a new location on Friday, August 12th, 2022. We will be closed Thursday, August 11th in preparation for the move.
The address of our new location is 1850 Woodbury Ave, Portsmouth, NH 03801. If you have any questions regarding our move please let us know and we will continue to keep you informed.
Thank you!Shop Sundance® Spas