Rebun Island is known for its alpine flowers and the 8-Hour Hiking Course which runs from one end of the island to the other, north to south. The hiking course can be broken into two sections, known as the 4-Hour Hiking Courses. Rebun Island is home to a chashi, or hilltop fortification of the Ainu people. The highest point on the island is Mount Rebun (). The island is part of the Rishiri-Rebun-Sarobetsu National Park.