HA LONG PORT – BAI TU LONG BAY – THIEN CANH SON CAVE (5.5 hours) 12:00 Welcome tourists to Ha Long International Port. 12:30 – 13:30 Lunch on board. 14:00 – 14:30 Visit Thien Canh Son Cave and kayak to explore the bay. 15:00 Return to the boat. Relax on the boat and take a boat […]