A display of holiday lights in the Georgetown Harbor along the Harborwalk will get you in the spirit of the season. All boats in the parade will be festively lighted, many playing holiday music as they cruise by spectators. Prizes are awarded for Best Crew and Best in Show. Sponsored by Going Coastal Realty. Harborwalk, downtown Georgetown. Saturday, 6 p.m. www.historicgeorgetownsc.com