Ключевые слова: asia, beauty, blue, bright, cave, colorful, colors, congelation, creation, destination, fantastic, geology, green, ha, ha long, halong, heritage, history, limestone, long, mountains, mystery, natural, nature, orange, preserve, red, rock, seeings, sight, southeast, stalactite, stalagmite, stone, tourism, tourist, travel, treasure, vacation, vietnam, vivid, wonderful, wonders, world, yellow,