During low tide, Galapagos sea lions often bask on the sun-warmed rocks while tourists watch from a distance.

The divers carefully photographed the sea whip corals swaying in the gentle current.

On the low-tide flats we collected several slender sea lettuces to study their growth patterns.

Steller sea lions hauled out on the rocky shore as the tide receded.

The captain ordered the crew to check the sea rescue kit before we left port, ensuring the inflatable lifeboat, flares, first aid supplies, and emergency rations were all present.

The green sea turtle migrated hundreds of miles to return to the same nesting beach where it was born.

The First Sea Lord outlined new readiness measures for the fleet during the defence briefing.

During low tide, I found a delicate mat of slender sea lettuce clinging to the rocks.

While watching the rugged coastline, we were thrilled to see a white-tailed sea eagle swoop down and snatch a fish from the waves.

The Kemp's ridley sea turtle is critically endangered, and marine biologists are working to protect its nesting beaches.