Tien Yen is a district of Quang Ninh Province in the north-east region of Vietnam. The district covers an area of 617 km². We at Golden Trekking Tours Vietnam don’t run any trekking tour in the district of Tien Yen. If you look for Tien Yen treks, Tien Yen hikes, hiking Tien Yen Vietnam, Tien Yen trekking tours, Tien Yen hiking tours you should move further north to Binh Lieu district, or other neighboring provinces such as Ha Giang, Lang Son, Cao Bang…