Sailing through a smooth Pacific Ocean, as smooth as I have ever seen it, we approached Manzanillo. It was smooth enough today to see the birds sitting on the water and the turtles peddling by. Or better said surfing by if they were close to the ship. When I first went to sea I always worried about turtles getting in the propellers until I started watching them to see what happened when they came by. Well, what happens is that they are pushed aside by the bow wave. Turtles, due to their shape, are like corks on the water; corks that can swim. So when they are swimming on a ships course line, they are pushed aside by the pressure wave that is generated by the bow. That bow wave spreads out further and further away from the ship’s hull and the turtles follow, bobbing along on the crest of the wave. By the time they near the stern of the vessel where the propellers are, they are well clear. It might be a bit of a startling experience for Mr. or Mrs. Turtle to be lifted up by this un-expected wave and carried sideways but it does ensure that they do not come to harm. Bulbous bows were invented to reduce fuel consumption but they also work very well as a gigantic turtle mover. Continue reading