Ключевые слова: beach, bivalve, brown, clam, coast, colorful, dry, fine, golden, grain, granular, gritty, heap, marine, material, molluscs, natural, nature, ocean, particle, pattern, quartz, sand, sandy, sea, seashell, seashore, shape, shell, shore, silica, snail, summer, texture, travel, tropical, vacation, water, yellow,