Sindo (Hangul: 신도), also known as Jinyeom, is an island off the coast of Incheon, South Korea. Sindo covers an area of 6.92 km² (1,710 acres). During the Joseon Dynasty, a huge horse ranch was constructed on Sindo to suit the army's need. The landscape features several peaks, including Gubong-San (178.4 m or 585 ft).