Which gulf in Myanmar is famous for its large tidal range and mudflats?

The Myanmar gulf famous for its large tidal range and mudflats is the Gulf of Martaban. Also called the Gulf of Mottama, it is an arm of the Andaman Sea along southern Myanmar and is named after the port city of Mottama, historically known as Martaban.

The gulf has a tide-dominated coastline. Tidal ranges commonly reach 4 to 7 metres, while spring tides can produce a range of roughly 6.6 metres. These powerful tides continually move sediment across vast mudflats and create one of the world’s largest persistently turbid marine zones.

The Sittaung, Salween and Yangon rivers all empty into the gulf, carrying enormous quantities of fine sediment. During spring tides, the highly turbid zone can cover more than 45,000 square kilometres; during neap tides, it contracts dramatically. The moving sediment plume can shift by nearly 150 kilometres during a tidal cycle.

The Gulf of Martaban should not be confused with the Bay of Bengal, which lies to the west, or the Gulf of Thailand and Gulf of Tonkin, which are farther east in Southeast Asia.