[2] It consists of six separate protected areas: two nature reserves and four wildlife sanctuaries.

The areas have been protected as a Ramsar site since 1996 because of their importance for migratory birds.

There are large shallow areas with mudflats exposed during low tide.

A lot of seaweed (Fucales and kelp) accumulates there, providing good conditions for birds in search of food.

There are also marshes, damp beach meadows, and swamps in the wetland system.