The image shows a close-up of a turbulent sea, with waves crashing and splashing. The water appears to be dark and murky, indicating strong currents or turbulence. There is no visible land or horizon in the image, and the focus is entirely on the sea. The text at the bottom of the image is in Vietnamese and translates to "Tổng hợp các giao thức kỹ thuật số hàng không hiện đại nhất trên thế giới" which translates to "Summary of the most advanced digital air traffic protocols worldwide."