In March we went went on two different excursions that where booked through Royal while in Nassau with my 19 and 20 year old. My daughter and I went to Blue Lagoon and she was able to order a drink after she showed her ID. My husband and son went on a tour that offered a open bar and they allowed him alcohol as well. They both were not allowed to drink while on the boat or at Coco Cay. I’m sure each place is a little different but that was our experience.