You can get in on a beach volleyball game at this interesting lounge that's right on the beach, or just sit back and watch the motivated do their thing. A simple, open-air beach shack bar with sand courts, this getaway is very popular any time of year but it's packed in winter season. You can stroll the beach between sips and watch the dolphins that often come by to entertain. Naturally, sunset watching is a major sport here, accompanied by a frozen daiquiri or margarita. Undertow serves no food, so think of it as a before- or after-dinner spot for mellowing out.
• Hours: 10:30a-2a M-Sa, noon-2a Su