Ile Hon Mun, Ebony rocks

Hon Mun Island is situated on the south of Nha Trang Bay, Nha Trang City, Khanh Hoa Province. Named Hon Mun (meaning black island) because in the south east of the island, it has high-rise cliffs with dangerous wattles forming caves and grottoes, especially its stones are as black as ebony, which could rarely be found in other areas. In the black-stone caves of Hon Mun, every year flocks of swallow migrate to the area and build their nests.