Great experience with the GLASS service at KINGSKY! The only free-flying hot air balloon service in Vietnam, with a team of qualified and professional crews, delivers a quality, safe, world-class 5* and memorable experience for each passenger. . You are flying freely with the wind at an altitude of 200m, but still feel the balance as if you are walking lightly in the air. With more than 30 flight points at scenic spots all over Vietnam, you will feel the magic of flying in the air and see the beautiful scenery from above, the landmarks and the wonder of nature. nature from a new and unique perspective when flying in KingSky's hot air balloons.