One thing that is very visible in the island is the number of school trips from all around the country. Okinawa has a great image for the climate, the ocean, the nature and most of the highschool trips consider Okinawa
And again, I am so impressed by the discipline, the organisation. All students stand in line. all is cool.
At the airport, they simply sit in groups quietly on the floor waiting for their flight. Best practice we could use in Europe where we always end up with a noisy messy group