Middle Mouse

Local legend has it that St Patrick was shipwrecked there, giving rise to its Welsh name.

He then swam ashore and eventually founded the nearby church of Llanbadrig in about 440 AD, believed to be the oldest Christian site in Wales.

For visiting scuba divers the attractions are steep underwater cliffs that drop away to 40 metres (130') with abundant marine life.

There is very little protection from the fierce tidal flow, so accurate timing for slack water is required.

Any vessel that passed the island without signalling, and waiting for, a pilot was liable to incur a fine.