Book Across the Bay is a winter endurance event in Ashland, Wisconsin, inviting skiers and snowshoers of all ages and skill levels to traverse a beautiful course across the frozen surface of Lake Superior. The course is groomed for both classic and skate skiing, and the event features a festive atmosphere with a Finish Line Winter Carnival Tent at the Ashland Marina. As night falls, the course is illuminated by candles in ice luminaries. Shuttles transport participants to the starting area, and the event emphasizes community spirit and scenic winter views for all involved.