Ha Long Bay is Vietnam’s most recognizable natural landmark, nearly 2,000 limestone karst islands and islets rising out of emerald water, a UNESCO World Heritage Site since 1994. For most travelers, seeing it means boarding a cruise, whether a day trip out of Hanoi or a multi-night voyage that continues into the quieter waters of Lan Ha Bay.
The bay rewards travelers who go beyond a single afternoon on deck: kayaking into hidden lagoons, exploring cave systems carved over millions of years, and overnighting on the water are what separate a rushed day trip from a trip people actually remember.
Ha Long Bay sits in Quang Ninh Province, roughly 165 km (a 2.5–3.5 hour drive) east of Hanoi, on Vietnam’s northeastern coast. The bay covers about 1,553 square kilometers and includes protected core zones alongside the adjacent Bai Tu Long Bay and Lan Ha Bay, which share the same karst geology but see far fewer visitors.
Most travelers start their trip in Hanoi, and depart from Tuan Chau or Ha Long International Cruise Port; cruises heading toward Lan Ha Bay often depart from Cat Ba Island instead.








