The spiky Spiny Starfish can grow up to 70 cm but this one, spotted in Mount’s Bay on a kayaking trip, was a more modest 20 cm. Photo: Steve Townsend

Snakelocks Anemones are mainly found in rockpools at the low tide mark on the shore. Photo: ©Natural England/Ross Bullimore

Dahlia Anemones are a common rockpool find on the lower shore. Photo: ©Natural England/F Dipper

This small crab species is an occasional visitor to Cornwall’s shoreline, brought here by storms and strong currents, often in the company of Goose Barnacles. They can sometimes be spotted […]

Look out for Goose Barnacles washed up on shore attached to driftwood and other flotsam on the beach, especially after stormy weather. Photo: Wikimedia Commons (see main article for full […]

It’s easy to see how the Compass Jellyfish gets its name. Photo: Ray Surridge

These gentle giants of the seas can be spotted round the Lizard coastline in the summer. Look out for their dorsal and tail fins above the waves. Photo: Greg Skomal

Watch out for schools of splashing and leaping Common Dolphins round the Lizard. Photo: © Natural England / Rebecca Walker

In warm summers, large numbers of Barrel Jellyfish, harmless to humans, can be found in the seas round the Lizard. Photo: Ray Surridge  

In the UK, Grey Seal pups are born between September and December. Photo: © Richard Birchett

The warm weather of summer brings Ocean Sunfish to seas around the Lizard. Photo: Amanda Scott

If you’ve ever found a crab when rock-pooling, there’s every chance it was a Shore Crab.  Photo: Ray Surridge