“Flowers of the sea” in Ha Long bay Located within the core of Ha Long Bay, the area of Coc Cheo possesses unique and majestic scenery characterized by the presence of Karst landscapes such as high mountains and steep limestone cliffs. Around these rocky islands lie large red coral reefs which are fully preserved. On low tide days, these coral reefs look brilliant under the sun like a brilliant flower garden. With various shapes and colors, coral reefs can leave everyone an overwhelming impression. 16:09 | 07/06/2021