Northern Michigan’s largest indoor waterpark, Avalanche Bay, located at Boyne Mountain Resort near Boyne City is underway with construction of a new half a million dollar slide that is expected to open in December 2013, in time for the resort’s ski season.  The new attraction, a ProSlide SuperLOOP™, is the first of its kind in Northern Michigan.

The thrilling ride, to be named The Big Couloir, begins in a launch capsule and features a trap door that drops away and propels riders into an enclosed tunnel traveling at speeds up to 38 feet per second through the length of the 360 degree SuperLOOP™ before slowing with a splash. Boyne Mountain Resort‘s Big Couloir welcomes riders 48 inches and taller.

“The Big Couloir is a fast, unique, and hair-raising ride,” said Ed Grice, Boyne Mountain Resort’s president and general manager.  “The slide is sure to be a hit with juniors, teens, and adults and will be a great addition to the waterpark.”

Avalanche Bay Indoor Waterpark opened in May 2005 and continues to draw top honors, most recently named among the top ten indoor waterparks in the U.S. by Budget Travel.  The 88,000 square foot waterpark boasts aquatic adventures for all ages including five amazing waterslides, Rip Zone surfing wave, four-story mountain water-play structure, shallow children’s pool and activity pool, lazy river, relaxing hot tubs, mega-arcade, and pub with food and a full bar.

Themed as a snowy Swiss-Austrian Village, Avalanche Bay Indoor Waterpark maintains a constant temperature of 84 degrees making it the perfect escape for year-round enjoyment.  Guests visiting the waterpark can also experience a diverse selection of four-season resort amenities while at Boyne Mountain including numerous snowsports, Zipline Adventures, Solace Spa, and summer attractions including golf, horseback riding, biking, and fly fishing.

Half- and full-day waterpark passes are available from $22 to $45 and discounts are provided to resort lodging guests.  Boyne Mountain Resort lodging packages with waterpark admission and Ski and Splash packages are also available.

For more information on The Big Couloir, visit  For package reservations, call 800.462.6963.

Get the latest on Northern Michigan ski resorts in the MyNorth Michigan Ski Guide