This season, the sedimentary rocks in Ly Son wear a new color. The glossy black color of a million-year-old lava stone is replaced by the green color of moss growing from the sea.

In early spring, the weather gradually warm is also the time when the “fields” of seaweed and moss grow dense on the million-year-old lava rocks. The green color of seaweed and moss makes sedimentary rocks in Ly Son become green. Currently is the most appropriate time for visitors to admire this beautiful scenery.

The moss season in Ly Son starts from January to the end of March every year. When the tide recedes, “field” of green algae and moss appeared again.
Green moss covers the lava rocks in Hang Cau landscape.
Seaweed, moss with many different colors create the scene like a water-color painting. This season, the lava rocks on Ly Son Island are covered by moss. Not only green, a few algae and moss have many other unique colors. All colors blend together to create a beautiful picture in the middle of the sea. Seaweed and moss were picked up by Ly Son people and dried as fertilizer for onion and garlic. Several types of edible seaweed have brought about high economic efficiency for the people of Ly Son.

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