The island of Bali belongs to Indonesia and is located in the Java Sea, known mainly in the West as a holiday destination of some luxury. To serve Bali, only one airport, located south of the capital Denpasar. The airport was built on a relatively thin part of the island to such an extent that it was necessary to extend the single runway 09-27 by the west over the water for a distance of nearly one kilometer, to reach a total of 2990m. Domestic terminals are located north of this runway. A general aviation and military terminal is in the south. Runway 09 is generally used with the exception of the summer when the wind comes from the west and therefore it is mostly the 27 that is in use in December and January. From a traffic point of view, the national airline Garuda Indonesia has a base with a few planes including large aircraft, as well as its subsidiary Citilink and its A320 fleet. The low-cost airlines Lionair and Air Asia Indonesia also have a base of a few aircraft. Other flights are operated by Batik subsidiary of the group Lion. The rest of the observed traffic is mainly ensured by the big companies of Southeast Asia (Thai, Malaysia, Singapore Airlines, Cathay, Scoot), China (Eva Air, China Southern, China Airlines) and the Middle East ( Emirates, Qatar). Australia being less than three hours away, many flights are operated by both the large Qantas and low-cost Virgin Australia, Jetstar by medium and large aircraft. From the "Old Continent" we only saw a few KLM weekly flights in 773 making an Amsterdam-Jakarta-Denpasar triangle, which is evident since Indonesia is a former colony born. By the presence of a base, military flights can be observed. We did not see any fret activity.