Tried it in some of the larger rivers here to practice relaxation and "moving instinctively with the flow" so to speak.
Not to mention that it just felt cool. Also practice in the ocean.
Actually it sorta helped me figure out the movements of gyakugamae ate (sokumen irimi nage) and aigamae ate (irimi nage) by helping me understand how to apply the "wave" motion more effectively in my techniques by moving from my hips.
Was interesting - one more reason for beach training.