In the past, Quan Lan Island was a bustling port in the system of the ancient Van Don commercial port. Nowadays, on the island, it still retains many trails of that golden age. Beside the relics of the ancient port, there are many old structures such as the Quan Lan Communal House built in the 18th century; Quan Lan Pagoda dedicated to Buddha and God Lieu Hanh; and Quan Lan Shrine.
Quan Lan Island is located in Van Don District, about 45 kilometers far to the northeast of Halong Bay. The island belongs to the territory of Bai Tu Long Bay. Quan Lan Island is a large island with an area of 11 square kilometers.
It has untouched charming scenery with long white sand beach and green pine forest. The island is also the residence of many aquatic species such as squid, butterfish, mackerel, sea cucumbers, shrimp, etc. On Quan Lan Island, tourists can gaze and swim at one of the most beautiful beaches of Halong bay; enjoy quiet and refreshing atmosphere as well as delicious seafood from local fresh sea products.