Celebrate Mardi Gras on the MarshWalk with live music, party favors, beads, authentic cuisine and dinner and drink specials. There will be a costume contest parade, and $1000 in cash and prizes will be up for grabs. Anyone can join the parade, but those who want to be eligible for the contest must register at The Wicked Tuna between 5 and 6:35 p.m. Let the good times roll! Murrells Inlet MarshWalk. Tuesday, 7 p.m. Free. www.marshwalk.com