With so many incredible coastal sights to experience in Cambodia and Vietnam, we take to the water on this 19-day river experience. Stay overnight on a traditional junk boat at Ha Long Bay harbour, visit floating markets in Cai Be, and see old colonial houses along the Mekong Delta. We've saved one of the most memorable bucket list destinations on Southeast Asia for last — a guided tour through the incredible, ancient temple complex of Angkor Wat at sunrise.