Captain of the Queens
The Harbors 
Several harbors are available for docking, Honolulu and Nawiliwili, Hawai'i; Long Beach, California; New York, NY; Fort Lauderdale, Florida; Sydney, Australia; Southampton, UK and Apia, Samoa. All except Apia have high resolution graphics of the harbor and surrounding areas like Honolulu harbor shown below. The target dock is indicated by a yellow line in this case at Aloha Tower. So long as you keep your ship in the bright blue water, you will not run aground. But if you venture slightly out of the blue, the ship comes to an abrupt halt. Southampton has some well known shallows should you venture far from the channel markers. 
Honolulu zoomed all the way out 
Ship docking in Fort Lauderdale zoomed all the way in