Whether you’re visiting in the spring, summer, fall, or winter, Wisconsin Dells Mountain Coaster offers unique events that add an extra thrill to your trip. Find all the events happening in Wisconsin Dells here. Wisconsin Dells Mountain Coaster has year-round events in Wisconsin Dells. Traveling during the holidays? Don’t miss our limited-time experiences, special promotions, and festive attractions designed to make your Wisconsin Dells vacation unforgettable.