Avalanche Bay

Avalanche Bay is the largest indoor waterpark in Michigan at 88,000 square feet and located at Boyne Mountain Resort, a short drive from Bay Harbor. The weather is always perfect and you'll have plenty to explore with six exciting water slides, a children's pool, relaxing hot tubs, RipZone surf simulator and a lazy river!


New for 2021-22, all year-round, resort guests enjoy 10% off Avalanche Bay passes as part of our new Stay & Save program! You'll use your Confirmation Number as your discount code when purchasing waterpark passes online.

Always 84 Degrees

"I'm bored" is never heard here. Located at Boyne Mountain Resort, just a short drive from Bay Harbor, enjoy 10% off day passes as a resort guest this winter!