We have always had fun on the YaMon (I think it was previously called Red Stripe). You can sign up at their office between Rondel Village and Boat Bar. Garth and Myrna are often strolling the beach selling the cruises as well. We have done the sunset cruise 3 or 4 times and it includes a nice snorkeling stop, beer, rum punch, a plate of food and a stop at Rick's Cafe.