During the Admiral's retirement cruise, Yellowfin is underway, but is shown tied to the dock in one scene (the concrete dock is visible on the right of the screen).
Naval officers are shown wearing their garrison covers indoors; in all but a couple of specific situations, covers are removed indoors. Also, when the Navy uses the 24 hour clock, the word "hours" is omitted from the time, e.g. 1800 versus 1800 hours. While civilian ships might not follow that convention, anyone raised by a Navy man would be accustomed to the Navy convention.
when Tia and Jake are having dinner after missing the dinner cruise, the shadows indicate that the time is actually closer to noon than dinner.
When Tia and Jake go to visit the Admiral to suggest that he move his retirement party from the navel base to Des Mers aboard the Pacific Yellowfin the aerial shot is of the USS Arizona Memorial at Pearl Harbor, Hawaii.
When the engine fails on their first dinner cruise Jake says he can't finish cooking dinner. His gas stove should not have been disabled by the ship's engine going out. The burners could be lit with a match.