Ключевые слова: abstract, aerial, blue water, caldera, caldron, calming, cauldron, circle, circular, colorful, crater, earth, emerald, ground, iceland crater, keri, keri crater lake, keri volcanic crater lake, kerid, kerid crater, kerio, kerith, kerith crater, lake, land, landmark, landscape, lava, mirror, moss, pattern, perspective, picturesque, pond, pool, pov, reflecting, reflecting pool, reflection, rm, southern iceland, turquoise, unusual, view, volcanic, volcano, water, wop,