Ключевые слова: adventure, asia, bay, beautiful, blue, cat ba, cat ba island, coast, day, grass, green, halong, hiking, holiday, island, landscape, mountain, nature, ocean, old, outdoor, panorama, paradise, park, railway, range, rock, scenic, sea, sky, stone, summer, sunny, sunset, tourism, transportation, travel, travel vietnam, tropical, vietnam, view, viewpoint, walking,