Located between the two big estuaries of the Red River and the Tra Ly River, Tien Hai district in Thai Binh province, with sand dunes along the beach, is ideal for clam farming. Boasting vast clam farming fields, Tien Hai is dubbed the cradle of 'villages on the sea' by northern delta fishermen. (Photo: VNA)
Tien Hai district has 3,000 hectares of clam farming along its 20km coastline. Farmers in Nam Thinh commune use machines in clam farming. (Photo: VNA)
Farmers at the seed clam farming area in Nam Thinh commune are paid 200,000 VND per day. (Photo: VNA) 
Farmers in Nam Thinh commune harvest clams. (Photo: VNA)
Besides permanent employees, clam farms create thousands of jobs for locals. Today, the model of 'villages on the sea' in Tien Hai district has been expanded to coastal districts in Hai Phong city, Thai Binh, Nam Dinh, Quang Ninh, and Thanh Hoa provinces. (Photo: VNA)
Sorting clams after purchasing. (Photo: VNA) VNA
