Sam arrived early with his parents outside the Agnes L. Park Recreation Building, known locally as the Rec Hall, for a bike decorating contest.
He joined about 75 other kids gathered on the street in a swarm of red, white and blue flags, streamers, hats and sparkling stars.
"I wanted to do this last year, but my dad's in the Navy, so we had to skip it," Sam said as he got ready to pedal. "I remembered Washington crossing the Delaware, then me and my dad decorated my bike as a boat."
Sam wore a white wig, hat and knee-high boots with buckles as he gently rode, not rowed, his boat down the street. The judges took notice, too, and chose him as the winner in his age category.
Sam's family currently lives in the South American nation of Ecuador, where Sam's father Mike Robles is assigned to the U.S. Embassy, but they come back to their cottage in the tightly-knit beach neighborhood in Old Orchard Beach each year.
"Every summer, Ocean Park -- it's our anchor," Sam's mother Tonya Robles said.