Local resident Ton That Tuan (34), who lives in Nha Trang Ward, shared that small sandbars occasionally appear along the coast during previous years, but they’re often short-lived and quickly washed away by waves.

This time, however, the sandbank has remained for several days, clearly visible whenever the tide recedes. With its substantial area and volume, the formation has attracted waves of visitors eager to capture the rare sight on camera.

Speaking with VietNamNet, Dam Hai Van, Director of the Nha Trang Bay Management Board, explained that the sandbar formed at the intersection of river and sea currents.

Sediment from upstream - carried by historic floodwaters down the Cai River - combined with continuous wave and wind activity to create the sandbank over time.

Nha Trang Bay, spanning nearly 250 square kilometers, is one of Vietnam’s 16 national marine protected areas. It is known for its vibrant coral reef ecosystems and rich marine biodiversity, attracting both domestic and international tourists.