With TMM last spring, we had to spend the last night at the dock in order to catch the 10 am ferry.
Next month, our crew needs to catch the 10 am ferry, but we're staying on Tortola for a few more days so we'll end our trip with our last night at either Cooper or Norman. Get back to the dock in the morning and let the crew go and we'll stay back and do the boat check out, etc.