High Quality Content by WIKIPEDIA articles! High Quality Content by WIKIPEDIA articles! Tide pools are rocky pools by oceans that are filled with seawater. Many of these pools exist as separate entities only at low tide. Tide pools are habitats of uniquely adaptable animals that have engaged the special attention of naturalists and marine biologists, as well as philosophical essayists: John Steinbeck wrote in The Log from the Sea of Cortez, "It is advisable to look from the tide pool to the stars and then back to the tide pool again."