How can PWC operatores minimize annoying noise?

Which marine creatures often attach themselves to the bottom of boats? Weight of a 1997 17 foot 120 HP maxum inboard Outboard runabout? What is the tar substance called pitch? What companies are known for offering booze cruises? Where can you get a Paddle Ball? What are triangular sails called? What are the costs for ship building? Do hydrofoil stabilizers take speed away from boat? When returning from the sea a green navigation buoy should be passed in what manner? What lower unit gear lube should be used on a 9.9 mercury outboard? How do you set the timing a 1978 Mercury 90 hp boat motor? Back end of the boat? Inboard gasoline boats built after july 31st 1980? Which is the most important factor in determining a safe vessel speed any given day? What safety precautions should you take when filling gas tank on a boat? What is point gap for 72 Evinrude Sportwin 9.5HP outboard? Can you apply first time home buyer credit to a live aboard yacht? What are the requirements to drive a jet ski in Michigan? When you are trying to bring someone into your boat from the water you should bring them in? How is air recycled in submarines?