Here is the diagram of the America’s Cup course for the upcoming San Diego series. It will shut down the port entirely during the event. Granted it is only for a few hours each day and only the days of the event. But no other boats will be moving. In San Francisco it will shut down the commercial port and all commercial traffic.
In Newport, next June it will be no different. For anyone not consumed by the America’s Cup, it is liable to be a nightmare.