Birch Bay Hot Tubs is a Division of Hydra Plastics, Inc. Our commitment to excellence goes back to the very first spa we manufactured, back in 1976, and is evident in everything we do. We take pride in hand crafting the finest hot tubs in the world. We take the time with every quality detail to ensure our customer is happy with their hot tub. This commitment leads us to continuously evaluate our methods to maintain our position as a technology leader.