The Islands of Japan are so narrow that no point in the country lies more than 150 km (93 miles) from sea waters.
To the West, there is the sea of Japan, which separates Japan from the Asian mainland. To the north, lies the sea of Okhotsk, and to the south is the East China sea. All these are extensions of the Pacific ocean which lies to the east of Japan. To the far south-east lies the Philippine sea.