Designated as a natural monument, Bijarim Forest is a group of about 2,800 nutmeg trees between 500 and 800 years old. They are 7-14m in height and 50-110cm in diameter. This is the largest nutmeg tree forest in the world. In the middle of the forest is an 800-year-old tree, called ‘Ancestor tree of the Bija trees.’ The tree is the oldest tree on Jeju-do with a height of 25 meters and girth of 6 meters.