
The islet was formed by two stones: one is higher than the other and one is lower. The two stones are linked with each other and look like a saddle from a far distance. Underneath the point where two stones are linked, small boats can sail through. So that, some people thought the islet is like a sewing machine than a saddle.
As its majestic setting and unique shape, Yen Ngua is one of interesting sites on Halong bay that usually involved in cruising track of tourists when visiting Halong.