Kanzakihana Park is in Kanzakihana, which is located at the westernmost tip of the mainland of Japan. This park includes a monument that represents Sasebo’s quadruple exchange with Wakkanai (the city located at the northernmost point), Nemuro (the city located at the easternmost point), and Minamiosumi (the town located at the southernmost point) and a lawn square. On warm days, you can enjoy rocky shore in the tide pool.