The trace of the Thoi Loi crater on Ly Son island district, Quang Ngai. Dr. Tran Tan Van, Director of the Institute of Geological and Mineral Sciences said the island of Ly Son, the waters of Binh Chau and the vicinity have unique geological strata, with the remains of the creation of the earth's crust millions of years ago.

Sunset on the Thoi Loi crater. Dr. Van said, the different periods of volcanic eruptions created natural masterpieces from the interaction between the sea and the volcano.

The volcanic sedimentary cliffs of about 10 million years in the mystical morning mist. Dr. Nguyen Hoang, from the Japan Institute of Science and Technology said with the volcanic terrain covering up to 70% of the area of Ly Son island, with multiple layers of volcanic lava of different thickness, the island can be considered a rare natural museum of volcanic activity in the world, deserved to be a Global Geopark.

Morning glory blossoms at Thoi Loi crater, Ly Son island district.

Duc Pagoda near the Gieng Tien crater, Ly Son Island.

The volcanic sediments on the beach in front of Hang Pagoda, a national historic cultural relic site on Ly Son Island. Dr. Nguyen Ngoc Thu, former director of the Geophysical Center of the Southern Mapping Geological Federation, said the volcanic sediments create unique scenery for the waters of Binh Chau - Ly Son.

Volcanic sedimentary rocks make up Dun islet of An Binh Island, Ly Son island district.

Volcanic sedimentary cliffs on An Binh island commune.

Volcanic eruption created many unique rock clusters onshore and offshore of An Binh island.

Scientists examined volcanic sediment rocks on the island of Ban Thanh.

Volcanic sedimentary rocks in Ganh Yen in Binh Hai Commune, Binh Son District.