The term 'BEACH COVER' can be broken down into two crossword solutions: SAND (4 letters) and TIDE (4 letters). SAND is a granular material composed of finely divided rock and mineral particles, which is found on beaches and other coastal areas. It is often used to create a barrier between the beach and the ocean, providing protection from the TIDE. The TIDE is the regular rise and fall of the sea level due to the gravitational pull of the moon and sun. It is an important factor in beach erosion and can cause flooding if not managed properly.