In the Hokkaido village of Shakotancho on the Shakotan Peninsula, where rocky shore denudation is severe, environmental conservation activities centering on commercial fishermen and with the collaboration of leisure divers are underway in earnest. While reports of trouble between commercial fishermen who make their living on the sea and those engaged in marine leisure are not uncommon, in Shakotancho they are working together as a community, hand in hand, to restore richness to their coasts.