We arrived at the Rhone NPS buoys as the only boat around. A swim check revealed that there was a better buoy for what we wanted to do, so we moved the boat and then started prepping for the dive. Xiaoqin felt well enough to dive, so she did the first dive while I took Bowen around the bow part of the wreck so he could look around as well as see mommy dive.
My last sail to Soper's Hole was in 2007 on a mono-hull. With a single-engine and inexperienced crew, dealing with mooring buoys was such a chore that I opted for a slip, and didn't have a good experience --- it took a long time to pick up water, and the place felt crowded. We debated contingency plans for when we got there, including deploying the dinghy to reserve a mooring buoy if the place was so crowded that finding a free mooring buoy was going to be an issue.
Once in the harbor, we were told to go to the main fuel dock to pick up water. While we were filling up our water tanks, we put Xiaoqin, her mom, and the 2 kids ashore, while I did the dishes. Mark, John, Arturo and I found a wheel barrow, moved all the empty air tanks into it, and then Mark proceeded to wheel it to the Blue Water Divers shop. The shop had a great policy --- since we had rented the tanks from them, we didn't have to wait for a fill --- they would just exchange our tanks with already filled ones, and then bill us for the fill along with the rental equipment when the charter was entirely over.
We paid for a mooring ball and water, and then got off the docks to grab a nearby mooring ball. There were a large number available, so it was a non issue.