Go Sail Flathead Lake offers an exceptional sailing or paddling experience on Montana's largest freshwater lake. With a fleet of well-maintained sailboats and experienced captains and instructors they offer sailing school, sailboat rentals and sailing charters, as well as kayak and paddleboard rentals, allowing guests to explore the stunning waters of Flathead Lake at their own pace or with a guide. Whether you're a seasoned sailor or a beginner looking to learn, Go Sail Flathead Lake offers personalized experiences that cater to all skill levels. Their expert guides ensure a safe, enjoyable and memorable adventure surrounded by the breathtaking scenery. American Sailing Association (ASA) certified sailing instructors. Seasonal: May – October. Have fun and learn to sail!