Our resort offered an afternoon excursion on the Scoobi Doo 2. It involved snorkeling around the island Tintamarre and then a sunset cruise out on the water. Drinks and appetizers were included for about $50 per person, and this was a highlight of the trip.
The snorkeling was decent, but the sunset experience on the water was perfect. Once the captain put up the sail, it was very relaxing to lay out on the netting and enjoy the weather. I'd recommend this to anyone considering an afternoon boat excursion.