Cruise boats run to the middle of Lake Toya and the four islands that make up Nakajima Island. Surrounded by the sound of gently lapping waves, passengers look out at Mt. Yotei and Mt. Usu and the countryside. Evoking images of times past, 'Espoir' floats on the lake like an illusionary castle and during the Fireworks Nights, visitors can admire the display from the lake on nightly firework boat trips.