In spring and summer, look out for 'cuckoo-spit' - the frothy mass of bubbles that appears on plant stems everywhere. This is actually the protective covering for the nymphs of the tiny…

The brown shrimp blends perfectly with its seabed home and is found all around the coasts of the UK.

This huge gull can be seen around most of the UK's coasts in summer, with some venturing inland in winter.

Sea lettuce is unmistakeable - most often a bright green and always translucent, it is found on all UK coasts.

Red-necked grebes occasionally attempt to nest in the UK, but they're more often seen as winter visitors to sheltered coasts.

Fennel has feathery leaves and open, umbels of yellow flowers. It was probably introduced by the Romans for culinary use, and is now a naturalised species of verges, waste ground and sand dunes.…

This stocky wader is mostly a winter visitor to the UK, where it can be found on rocky, seaweed-covered coasts, often with groups of turnstones.