If you would like to try your hand at the exercises they do in the Frog Corps, then watercast is for you. You lie down on the RIB boat's pontoons and wait for the 2×300 horsepower in the boat's engine to start. When the RIB boat has good speed, you let go and fly across the water. Imagine your own body being used as a surfboard, then you actually have a very good idea of what watercast is.