Extremes have always been the norm at Boyne Mountain Resort. So when we built Avalanche Bay Indoor Waterpark - Michigan's largest - it made perfect sense.
Centrally located at the heart of Boyne Mountain Resort, this wet, wild waterpark is open all year 'round, making it the perfect destination for family and friends to let off steam. Whether you're cooling off in the summer or warming up from a day on our winter slopes, you'll welcome each splash of our 84-degree water.
Make an entire weekend of your Avalanche Bay experience. Book lodging at our Mountain Grand Lodge and Spa, and you'll be steps away from the action.
At 88,000 square feet, Avalanche Bay Indoor Waterpark is the largest indoor waterpark in Michigan! The waterpark is full of adventure, no matter your age, in fact, we are convinced that adults have more fun. Inside the waterpark, you find:
- Six exciting waterslides, including all new The Big Couloir - Michigan's first ProSlide SuperLOOP with the steepest drop in the industry
- Fritz's Snow Fort - Artsy crafts and other activities daily led by an instructor
- A Children's pool
- Relaxing hot tubs, Rip Zone surf simulator, Splasherhorn Mountain, and a variety of other unique waterpark attractions
- Arcade filled with a ton of games for any age
- Snack Shack and Après Ski Pub
Plan your visit to Avalanche Bay Indoor Waterpark today and experience all that this unique Michigan waterpark has to offer!