Avalanche Bay Indoor Waterpark

Michigan's largest indoor waterpark

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!  Guests of the Inn and Cottages receive discounted entry.