Get close to nature through a variety of marine sports such as snorkeling, diving and sea kayaking. The canoes have transparent hulls so you can look straight down into the deep sea. See a shoal of horse mackerel swimming around, swaying seaweed, and the mysterious-looking seabed just below you. As you move around from Daisei-do Cave to Natane-jima Islands and see other places of interest, you will feel like a marine explorer.