Heritage Line sails six routes between 14 ports in Vietnam, Cambodia and Laos, mostly My Tho, Ha Long (Tuan Chau) and Siem Reap. From My Tho: Siem Reap, Kampong Cham, Phnom Penh, Cai Be, Sa Dec and Kampong Chhnang. From Ha Long (Tuan Chau): Viet Hai (Cat Ba) and Vung Vieng. From Huay Xai: Luang Prabang, Pak Lay and Pak Beng.