Take boat to visit the natural beauty of Ha Long bay which is dotted with 1,600 limestone islands and islets and covers an area of over 1,500 sqkm. This extraordinary area was declared a UNESCO World Heritage Site the first time in 1994 and second time in 2000 for its geomorphic value – with Thien Cung grotto (means Heaven’s palace), Lu-Huong islet and Couple islet. Have lunch on boat with seafood.