Sunday Funday
$20 Youth | $25 Adults
Splash Into Savings
Sunday Funday is BACK! Skip the day of rest and turn up the Sunday fun factor at Michigan's largest indoor waterpark, Avalanche Bay, for less! Splash from 2pm to close starting at just $20.*
Guaranteed to be fun for every age on 84° Sunday afternoons from April 20 - December 14, 2025.
- $20 Juniors | $25 Adults2PM - Close
- Snack ShackSlice of Pizza & Pop | $6
- Apres Ski PubPint of Cheboygan Blood Orange Honey | $6
Sunday Funday
- $25 Adults | $20 Juniors
- Sundays | 2pm - Close
- Tiny Splashers, ages 2 and under, splash FREE
- Food & Beverage specials
*Offered on Sundays from 2 pm - close, April 20 - December 14, 2025, excluding May 25, and August 31, 2025. The discount price is reflected in the online store and is also available for walk-up purchases at the waterpark kiosk. No additional discounts apply to passes or food and beverages. Restrictions may apply.
More Deals
Birthday Bash
Avalanche Bay Waterpark is turning the big 2-0, and we're making waves with our Birthday Splash Bash Weekend, May 16-18! Water you waiting for? We're offering an unmissable deal: just $20 Day Passes all weekend for all ages!
$20
Stay & Save
Save 10% off your Avalanche Bay Waterpark day passes when you book your stay with Boyne Mountain.