Hold a glass up high as Skip Henderson and Starboard Watch, a pirate band, belts out old sea shanties. It’s just your average Thursday night at Quinn’s. The lighthouse dates back to 1890. The deck seats eighty, and the pub on the second floor has eight beers on tap and more than fifty bottled beers to choose from. The atmosphere is casual — patrons are permitted to toss peanut shells on the floor. The restaurant downstairs is more formal, but guests can order off the full menu wherever they are.