Leave Hanoi at 8:00 for Halong Bay, on arrival at Halong city at about 11.30am, get on a private boat. Have seafood lunch on boat while the boat cruising caves, grottoes, floating villages and beaches. Stop to visit Thien Cung Or Dau Go Caves, one of the biggest, nicest cave in Halong Bay. Finish cruise about 15.30pm. Drive back to Hanoi and end tour at 19:00. Overnight in Hanoi.