The sandy mounds are worm casts, effectively the poo, of a marine worm called a lugworm. Common on sandy and muddy-sandy shores around the coast of Britain, they live in burrows under the wet sand. A ...

These are the lugworm, cockle, shore crab, brown shrimp and mud snail. The term is an allusion to the “big five” that every safari tourist hopes to spot in Africa: elephants, rhinoceroses, buffalos, ...