Look out for the distinctive white beak that gives this energetic dolphin its name. Don’t be surprised to see them breach and bowride too!

The herring gull is the typical 'seagull' of our seaside resorts, though our coastal populations have declined in recent decades.

Despite its name, the common gull is not as common as some of our other gulls. It can be spotted breeding at the coast, but is also partial to sports fields, landfill sites and housing estates in…

One of the most colourful fish in UK seas, the cuckoo wrasse looks like it belongs in the tropics. Don't be fooled though, it's very much a native species.

The long mane of tentacles that stream out from the lion's mane jellyfish is stunning… literally! Look but don't touch when it comes to these jellyfish - they give a powerful sting.

Sand eels are a hugely important part of our marine ecosystem. In fact, the fledgling success of our breeding seabirds entirely depends on them.