Dolphins underwater by Lars

I had often wondered how dolphins could cruise along under out bow at 6-8 knots with no apparent effort. Lars answered the question when he held his GoPro in the water off the bow, while a few dozen dolphins were playing with us. His video showed their tails and fins moving up and down vigorously, which is not at all evident when looking down at them in the bow wave. Please note: The views, opinions and recommendations expressed on this website and the documents referenced herein are those of the persons expressing them alone. The OCC and its officers and directors have not verified, and accept no responsibility for any such views, opinions and recommendations.