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Ancient craters on 'mysterious volcanic island of Ly Son'

Experts see Ly Son and its geopark, formed by volcanoes from the prehistoric age, as an extremely rare "natural museum" of volcanic activities.
TREASURED ISLAND: Ly Son and its geopark were formed by volcanoes from the prehistoric age. It is a 'natural museum' of volcanic activities. VNA/VNS Photo

The ancient craters formed after millions of years of geological tectonics bestow a unique natural beauty on the coastal area along the central province of Quang Ngai, particularly the tourist island district of Ly Son.

Experts see Ly Son and its geopark, formed by volcanoes from the prehistoric age, as an extremely rare "natural museum" of volcanic activities.

Located off the northeast of Quang Ngai City, the island covers an area of ​​about 10 sq. km with over 22,000 inhabitants. It has many strengths in geological, cultural and agricultural production and is a famed tourist destination.

The area currently has traces of 10 craters, of which three are located on the seabed. Research by experts from the Vietnam Institute of Geosciences and Mineral Resources shows the volcanic cluster in Ly Son and its vicinity reveal many types of rock and lava typical for different eruption modes during the Quaternary period.

It is also home to the Hoang Sa (Paracel) Flotilla, which protected the Hoang Sa and Truong Sa (Spratly) archipelagoes four centuries ago. Every square metre on the island is imbued with the culture of its ancestors, who protected the sea hundreds of years ago.

"Ly Son island's structural rocks from the late Holocene age are divided into five categories from young to old stratigraphic units," according to research by Ha Quang Hai and Hoang Thi Phuong Chi from the Faculty of Environment, National University, HCM City.

In their research, the two experts explain the geomorphology is characterised by high-up cinder cones in the island having a funnel mouth, and basaltic flow forming a low cover at the foot of volcanoes. Marine terraces and beaches are mainly composed of calcarenite, and coral reef rocks are distributed around the island.

GEOLOGICAL WONDER: The vestiges of Gieng Tien crater in the west of Ly Son. This crater is hundreds of metres wide and 40m high, dating back about 1 million years. Photo

Significant destruction of marine waves into the volcanic slopes and basalt flows forms interesting landforms along the island, such as sea cliffs, sea caves, rocky coasts, and stone towers.

"The most attractive is the Hang Cau - Chua Hang cliff, which reveals a volcanic structural cross-section and the stratigraphic relationship between pyroclastic rocks overlaid on calcarenite layers," the researchers said.

The ancient craters of Hang Cau and Chua Hang erupted about 9-11 million years ago, creating the island's foundation today.

The geological tectonics created original landscapes on the island, which are rare anywhere else in the world. Among the beautiful sites are Hang Cau, To Vo Arch, Gieng Tien and Thoi Loi craters, which have significant scientific and tourist value.

Many other scientific studies on the geological conditions of Ly Son have highlighted the "dual crater" on the top of Thoi Loi mountain, praising it as one of the most attractive landscapes for tourism development in the island district.

The crater has a stunning lake on top of the mountain that erupted about a million years ago, with a diameter of 0.35km and a height of 149m.

Along the coast of Quang Ngai, a series of volcanic sedimentary rocks stretching for kilometres through the city of Quang Ngai and areas near districts of Son Tinh and Binh Son have become amazing check-in destinations for tourists.

In 2015, Quang Ngai established Ly Son-Sa Huynh geopark to conserve the rich biodiversity and geological, cultural and historical values of the island. The park covers the island and adjacent coastal areas in Binh Chau and Binh Hai communes, Binh Son District, with Ly Son as its core.

In late 2019, the province's authorities submitted dossiers to the United Nations Educational, Scientific and Cultural Organisation asking for the recognition of Ly Son as a UNESCO geopark.

RUGGED COAST: To Vo Arch, an attractive destination in Ly Son. The geological tectonics created original landscapes on the island, rare anywhere else in the world. Photo

Community tourism

Economic development focusing on tourism is one of the key targets of Ly Son, according to the district authority.

Ly Son will give priority to tourism when allocating resources for socio-economic development, said Dang Tan Thanh, vice chairman of the district People's Committee.

According to Thanh, the local economic structure is shifting towards sustainability and a larger proportion of the trade-service sector. Tourism has been earmarked for breakthrough development, becoming a key economic sector in Ly Son.

The district has targeted raising the share of the tourism-service sector in the local economy to 60 per cent. In comparison, agriculture will account for 30-35 per cent and industry-handicrafts the remaining 5-10 per cent.

The authorities plan to focus on completing the district's development master plan, which will be the basis for attracting investment over the next five years.

To this end, the locality has built a new central market and developed a diverse and affordable homestay network, dining, and transport services meeting the demand of locals and tourists to the island.

It is now tapping its tourism potential by conserving local relics, creating spiritual tourism, promoting historical and scenic sites, and protecting the environment by constructing a waste treatment plant.

"Ly Son is exploiting its potential to develop this economic sector, and community-based tourism is a way to preserve and promote the value of relics and heritage on the island," said a report from the website of the district People's Committee.

A new model of community tourism titled 'Kỳ Bí Đảo Núi Lửa Lý Sơn' (Mysterious Ly Son Volcanic Island) promises to open up a new direction for the development of professional and sustainable tourism.

The model takes advantage of agricultural activities, especially harvesting onions and garlic, traditional fishing, culinary activities and tours to mysterious destinations on the volcanic island.

It also makes use of secret stories about Ly Son's nature, culture and people stirring up the imagination of visitors.

Through this new model, tourists will have a broader view of the island's geological and historical development and be amazed at experiences in the fields of onions and garlic, which are so typical of the area.

More than 120 tourism enterprises and units, including those from restaurant services, hotels, homestays and transportation companies, have joined the model.

PARADISE: The natural beauty on the tourist island district of Ly Son. VNA/VNS Photo

Participating tourism businesses and agencies will be supported in promoting their image and guided on how to do professional community tourism.

Developed by the Quang Ngai Province's Department of Culture, Sports and Tourism, the University of Social Sciences and Humanities under the National University in HCM City, and Ly Son District People's Committee, the model is expected to fully exploit the potential of the island and improve the quality of tourism.

TWISTED ROCK FORMATIONS: An ancient crater in Ba Lang An Cape is about 30m wide. Here, the ecological topography extends to the surrounding area with many basalt fields. Photo

Bui Van Tien, deputy director of the culture, sports and tourism department, said it would accompany the People's Committee of Ly Son in strengthening the development of the model in local areas as well as throughout the country and abroad.

"We will let visitors know about Ly Son as a wild, interesting, clean and beautiful destination," Tien said. 

Source: Vietnam News



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