Hougaard Malan / Lighthouse at sunset. Kommetjie, Cape Town, South Africa. November 2008.

Hougaard Malan / Large wave crashing against rock shelf. Luphathana, Pondoland, Eastern Cape, South Africa. June 2012.

Christophe Courteau / Edible crab in tide pool split level {Cancer pagurus} Brittany France

Alex Mustard / 2020VISION / Looking up through water at boy dipping in a rock pool with a shrimping net. Falmouth, Cornwall, England, UK. Model released, July

Alex Mustard / 2020VISION / View up through tidepool of 2020Vision young photographer, Bertie Gregory, Falmouth, Cornwall, UK, July 2011. Model released. Did you know? Life isnt easy in a rock pool! Animals here must deal with c...

Ross Hoddinott / Godrevy Lighthouse at sunset, seen through rocksand rockpool in the foreground. Nr Hayle, Cornwall, UK, June 2009

Claudio Contreras / Northern elephant seal (Mirounga angustirostris) weaner sleeping at the bottom of a tide pool, Guadalupe Island Biosphere Reserve, off the coast of Baja California, Mexico, April

Guy Edwardes / Svartifoss / Black Falls, Skaftafell National Park Iceland, July 2009

Nick Upton / Rock cook / Small mouthed wrasse (Centrolabrus exoletus) caught in a rock pool on a low tide, being taken out of a fishing net. Cornwall, UK.

Wild Wonders of Europe / Muñoz / Algae growing in a pool on a rock, Scarista Beach, Sound of Taransay, South Harris, Outer Hebrides, Scotland, UK, June 2009

Jack Dykinga / Sunlit cliffs of Closed Canyon reflected in a seasonal rainwater pool in Santana tuff rock formation, Big Bend Ranch State Park, Texas, USA

Jack Dykinga / Clouds reflected in pool of rain water in petrified sand dune formation, Paria Canyon-Vermilion Cliffs Wilderness, Colorado Palteasu, Arizona, USA