I'd suggest you contact Dave Herbert at Happy Hour Charters. He and his wife Adrianna book tours with many different operators on the island, and since they live there, they'll have a good idea of which tour might be what you're looking for. If you're on Facebook, contacting him via his Facebook page is probably the easiest way to reach him, or you could visit his booth on the main road in front of Chesterfields in Philipsburg. I don't see any email or phone information on either page, so if you're not on FB and want to contact him, PM me your email address here, and I'll send it to him.