A Lobster - Gevelingenmeer

A swimmer crab - you can find them in different colors - Oosterschelde

An oysters with a sponges on top. - Oosterschelde

Some of the oysters are nearly overgrown by sponges - Gevelingenmeer

Somehow strange as they have usualy 4 of this horseshoe shaped
white structures and not six. - Gevelingenmeer

My personal rating:
Photos taken with: Canon Powershot G7X MK III