This is one of the eco-tourism site in Bái Tử Long Bay, Cẩm Phả District, in the itinerary of Bài Thơ Mount – Ấm Islet – Ðầu Mối Islet – Ðũa Islet – Monkey Islet – Thẻ Vàng Islet – Vân Ðồn. In Thẻ Vàng Islet, a resort is under construction to attract holidaymakers during weekends. An artificial beach is also underway. In the future, a system of villas and guesthouses will be built.