We did the Nighttime Glass Bottom Boat tour via the Cruise ship. We met right outside the ship, and got on the Glass Bottom Boat maybe 20 feet away. It was very convenient. The guides were excellent and very entertaining. They gave a great tour on the way to the viewing area. Not a whole lot to see, only a few types of fish and coral. Seeing the ship wreck was neat. They were very accommodating with our stroller and sleeping baby, allowing one of us to stay downstairs with the baby while the others went to the open air seating upstairs. And made sure the speakers were on downstairs to hear the tour (there were windows also).