Bookings Notice

Peak summer stays, June 18 – September 18, require a two- or three-night minimum stay. Please enter at least two nights when searching availability.  We look forward to welcoming you soon!

7-Day Forecast

  • Today
    72°F
    53°F
    2%
  • Tue
    77°F
    62°F
    2%
  • Wed
    81°F
    62°F
    4%
  • Thu
    79°F
    66°F
    1%
  • Fri
    75°F
    64°F
    77%
  • Sat
    78°F
    64°F
    58%
  • Sun
    79°F
    67°F
    62%

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!

Always 84 Degrees

"I'm bored" is never heard here.