KD, nice job with the Sylvan tug. No, the deck hand on the bow is not doing what you think. Got to keep it "A" rated for the grandkids. And yes, the harbor water is deliberately murky, as typical harbor water is. Also did that pour with my grandson. That was great learning experience. Blew on the surface of the wet pour to get rid of the bubbles, but could get rid of all of them. Then decided we like the look - appears as natural surface bubbles after the movement of the tug. Could not have achieved that if we tried!
Michael