"mud flats, and tidal flats are also included in the property" (integrity statement)

"including extensive areas of savanna woodlands, open forest, floodplains, mangroves, tidal mudflats" (OUV)

"The Sunderban mudflats are found at the estuary and on the deltaic islands where low velocity of river and tidal current occurs" (wiki)
See en.wikipedia.org

See visitworldheritage.com

"The property’s tidal flats are of exceptional importance for the conservation of the world’s migratory birds" (OUV)

"coastal areas covered with marshes and mudflats" (AB ev)

"the largest unbroken system of intertidal sand and mud flats in the world" (OUV)

"a diverse mosaic of wetlands, mudflats, dunes and cliffs" (OUV)

"ranging from a variety of pelagic and benthic environments to coral reefs, as well as mudflats, coastal wetlands and various types of desert and deciduous forest." (OUV)

"one of the world’s largest and most productive tidal flat ecosystems" (OUV)

"mangrove mudflats with minimal human impact" (OUV)