I thought Halong Bay was great but we think this is better. Many islands but more coloufful and green. Sea is a bluey green colour and clean. The highlight were to canoeing trips to the other islands close by. See if you can spot the gap in the rocks. Had to lie flat on the canoes to get in. Typical limestone cave, dark but opens out into a series of lovely lagoons. Went through the middle of tbe roots of the large Mango tree.