Am islet Ba Mun Island and Primitive Ba Trai Dao Islet Bo Hon Island But Islet Cho Da Islet Con Coc Islet Cong Do Island Cong Tay Island Dau Be Island Dau Moi Island Dau Nguoi Island Dinh Huong Island Dua Islet Mat Quy Islet Mat Quy Islet Ngoc Vung Island Ngon Tay Islet Oan Islet Quan Lan Island Reu Island Soi Sim Islet Su Tu Bien Islet The Vang Island Thien Nga Islet Ti Top Island Trong Mai Islet Tuan Chau Island Xep Islet Yen Ngua Islet

Quan Lan Island belongs to Bai Tu Long Bay; part of an island range on the outside of the gulf of Bac Bo. It has an area of 11 sq. km, and features eight populated hamlets. Quan Lan Island stretch toward East – West from the foot of Van Đon Range to the Got Mount with many high mountains to the east barring waves and winds, protect the villages. The island is situated on an important navigation route that connects China, Japan, Thailand and Philippines to Vietnam. Along two sides of the island are tens kilometres of sand beaches.

Since the 11th century, Quan Lan had been one of the centres of the ancient commercial port of Van Ðon, which was animated and prosperous at the time. Today, there are still many vestiges linked to the ancient commercial port. This also explains why the island, lying deep in the sea, has the large pagodas and archaeological sites seen today. On the island there is the Quan Lan Communal House built in the 18th century; exceedingly beautiful and almost entirely preserved. Next to it is Quan Lan Pagoda (Linh Quang Tu), which is dedicated to Buddha and God Liêu Hanh. The pagoda also worships the statue of old Hau, a local person who made lots of contributions to the construction of the pagoda. The statue features a gentle and cheerful old woman, which adds an original character to the pagoda. Beside Quan Lan Pagoda lies Nghe Quan Lan (Ðuc ong) Shrine, which is dedicated to Pham Cong Chinh, a local people who participated in the historical Vân Ðon battle against the Yuan invaders. He was later honored as a god. Quan Lan has many valuable sea products such as octopuses, butterfish, mackerel, holothurian, shrimp, and sái sùng.