Quan Lan Island (Quanlan) belongs to Bai Tu Long Bay, part of an island range on the outside of the gulf of Tonkin . 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 Ðon 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. This is the endless resource for glass making and it is also the extremely interesting tourism

Since the 11th century, Quan Lan had been one of the centres of the ancient commercial port of Van Don, 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. 

Quan Lan has many valuable sea products such as octopuses, butterfish, mackerel, holothurians, shrimp,and sai sung.
Quan Lan beach lies at Quan Lan Island in Bai Tu Long Bay, between Minh Chau and Quan Lan communes of Van Don District, 55 km away from Ha Long City. Its pristine beauty features unspoiled environment. The deep blue beach has strong waves and white sand, which spans over several kilometers. Tens of meters away from the beach stand the very green wild pines, which further add to its original charm.

A system of guesthouses taking the shape of stilted houses, which hide themselves under the lush foliage of casuarinas has been built. A brick-paved road leads tourists from the artery to Quan Lan Beach . Its pristine beauty and pure environment have made it a paradise for tourists.