In the popular game "Musical Waves" played by ducklings the world over, when the music stops, players need to be bobbing in a spot that rises and falls as much as possible.
On each round, the duckling reaching the smallest maximum height is eliminated. So, in the game above, the duckling with the green cap is out.
The game is best played with one or more artificial wave generators or, to make things tricky, around jagged coastlines. Can you predict who will win?