This is a great place to sample the area's bountiful seafood. Over a dozen thatched-roof restaurants all serve pretty much the same thing: shrimp cocktails, fried fish and other seafood dishes. It's 4.5km from Plaza Principal at the north end of the malecón (taxis from center around M$40).
Competition between restaurants is lively and the waiters can be a bit overzealous in their efforts to win you over. Just pick a spot that looks appealing, have a seat and enjoy the sea views.