Come dressed in your best and greenest costumes for a chance to celebrate and to win more than $1500 in cash and prizes. Participants will make their way along the MarshWalk collecting colored coins from bars and restaurants and enjoying drink specials. Secret Leprechauns will be scattered around to give out more coins. Murrells Inlet MarshWalk. Friday, 5–10 p.m. Free. www.marshwalk.com