Tide pools

                           Tide pools are tiny, shallow seawater ponds that grow on the rocky shorelines by the ocean's edge. The reversing tide leaves behind depressions or pockets of water within the stony substrate, forming these pools. A wide variety of marine life, including small fish, crabs, sea anemones, starfish, and several kinds of algae, can be found in tide pools. Tide pools can act as special microhabitats because of their isolation, supporting a diverse ecosystem suited to the challenging conditions of alternating exposure to the tides. They make popular vacation spots for nature lovers, researchers, and curious people alike since they allow for up-close observation and study of marine life.

Tide pools left behind by the retreating tide at Botanical Beach in Vancouver Island, British Columbia, Canada. (www.worldatlas.com/what-is-a-tide-pool.html)