Very tricky to try to plan for this. Everyone with an ADR between 7:00 and 9:00 is thinking along the same lines. As you get closer to 9:00, people will slow down their pace so that they don't have to give up their table. I would say that your best bet is to try to schedule an 8:00 ADR or thereabouts, and plan to arrive at 7:30. Tell the hostess that you are willing to wait as long as it takes to get an waterview table. At some point between 8:00 and 8:45, such a table should open up depending on the size of your party. Just remember. This is a restaurant. They aren't going to let you tie up a table after you finish eating just so that you can get a good view of the show. They expect to, and need to turn tables over.