Rebun Island (礼文島, rebuntō) lies in the Sea of Japan off the northwestern tip of Hokkaidō, Japan. Rebun stretches 29 kilometers in the North-South direction and 8 kilometers East-West, covering about 80 square kilometers. The island is known for its alpine flowers and the 8-Hour Hiking Course (8時間ハイキングコース, hachi-jikan haikingu kōsu) which runs from one end of the island to the other, North to South. The hiking course can be broken into two sections, naturally known as the 4-Hour Hiking Courses. The island is part of the Rishiri-Rebun-Sarobetsu National Park.
