Rockpools and sand at Combesgate Beach in North Devon, England, United Kingdom, Europe

Rockpools at low tide in Westward Ho!, Devon, England, United Kingdom, Europe

Rockpool on the sandy beach at Crackington Haven, Cornwall, England, United Kingdom, Europe

Rockpool on the rocky shores of Godrevy Point looking across to St. Ives, Cornwall, England, United Kingdom, Europe

Exposed rockpool at low tide on a deserted beach at Crackington Haven, Cornwall, England, United Kingdom, Europe

View across the Sound of Rum from the Singing Sands, Isle of Eigg, Scotland, United Kingdom, Europe

Sunset over rock pool, Strandhill, County Sligo, Connacht, Republic of Ireland, Europe

Tide pool and Manana Ialnd (Rabbit Island), Oahu, Hawaii, United States of America, Pacific