Hands on the wheel, Robert Marshall was out cruising in Harris Creek in Talbot County Thursday afternoon.
But just last year, it wasn't the same story - the propeller to his boat was damaged.
"I hit something that shouldn't have been there," Marshall said.
The culprit - rocks and oysters - and lots of them. They were planted by Maryland's Department of Natural Resources to help restore the health of the Chesapeake Bay.