Ключевые слова: adventure, africa, ancient, background, beautiful, blue, cave, cavern, cliff, coast, crystal, dark, deep, entrance, formation, geology, green, grotto, hole, inside, jambiani, kuza, lagoon, landmark, landscape, light, limestone, mineral, mountain, nature, ocean, outdoor, pool, river, rock, scenic, sea, speleology, stalactite, stalagmite, stone, tanzania, tourism, travel, tropical, tunnel, underground, view, water, zanzibar,