Although, commonly referred to as a ‘sea snail,’ this species in fact belongs to the fish family!

This large sea slug is anything but dull!

The common whelk is the largest sea snail found in UK seas, though you're more likely to find the dry balls of empty whelk egg capsules washed up in strandlines.

A small colourful sea slug that can be found grazing on sea mats on the rocky shore and beyond the low water mark.

The sea hare looks like a sea slug – but in fact has an internal shell. They can be up to 20cm long but are usually much shorter.

A large colourful sea slug found on rocky shores around the UK.

Despite its dazzling colouration, this fabulous nudibranch can be easily missed, due to its small size!