Blue Cat Boat Rentals in Bigfork, MT is a boat rental company located near Flathead Lake. This beautiful lake is the largest natural freshwater lake west of the Mississippi in the lower 48 states, and it's home to over 200 square miles of water and 185 miles of shoreline. We believe that there's no better way to experience the natural beauty of Montana than on the water, and our paddleboard and kayak rentals give you the opportunity to explore Flathead Lake in comfort and style.