Two boats – Boat A and Boat B – are anchored a distance of 33 meters apart. The incoming water water waves force the boats to oscillate up and down, making one complete cycle every 30 seconds. When Boat A is at its peak, Boat B is at its low point, AND there is a crest in between the two boats. The vertical distance between Boat A and Boat B at their extremes is 8 meters.