Within the framework of the implementation of the national-level independent project on “Studying and evaluating the current status of the avifauna, and proposing solutions for management and conservation of bird species in coastal lagoon area in Central Vietnam”, which is presided over by the Central Coast Natural History Museum, the Provincial Department of Science and Technology, and implemented by Dr. Ho Thang, the project leader, the research team has recorded the glossy ibis (Plegadis falcinellus) for the first time in the O Lau estuary of Tam Giang - Cau Hai lagoon.

Tam Giang - Cau Hai lagoon system is a world-class brackish water area. It is the largest in Southeast Asia, with special value in biological resources and countless gripping things in history and culture.... This area is seen as a "precious biological gem" that nature has bestowed on the ancient capital. With what existent, is it necessary to build an exhibition space or a museum for the Tam Giang - Cau Hai lagoon system?

Not only famous for its important and beautiful lagoon system in Vietnam, Tam Giang - Cau Hai also holds great potential for tourism development.

In the current conditions of the Tam Giang - Cau Hai lagoon, folk culture is an important resource to transform into unique and identifiable tourism products, with the following elements: village landscape, production culture and beliefs, festivals associated with folk performing arts.

On the morning of October 12, the Provincial Union of Literature and Arts Associations organized a workshop themed "Promoting the values of folk culture in the Tam Giang - Cau Hai lagoon area in tourism development".

Anyone who has ever been attached will tenderly love “the shallow sea” - the largest mangrove area in Southeast Asia. They try to preserve and promote the value of Tam Giang - Cau Hai lagoon... with all their love and enthusiasm. Many other residents are also joining hands to protect their livelihood and that of future descendants.

Responding to the World Environment Day (June 5) with the theme “Solution for Plastic Waste”, the International Day of Biodiversity and the Month of Action for the Environment 2023, on the morning of June 4, the Department of Natural Resources and Environment coordinated with the People’s Committee of Phu Loc district, Thach Son Fisheries Association (Loc Dien, Phu Loc), etc., to release 80.000 fingerlings of tiger prawns and over 14.000 rabbitfishes into the Da Dam and Da Mieu fisheries conservation areas belonging to Tam Giang – Cau Hai Lagoon.

With an area of around 22 hectares of water surface, Tam Giang – Cau hai Lagoon is Southeast Asia’s largest brackish lagoon, with a diversity of flora and fauna ecosystems.