Jeffrey F.
Google
Great museum! Not just maratime history but also a good primer on the local history. First floor is colonial, second (a balcony around the outside) is about the harbor and refinery, third (the smallest) is restrooms and military history.
$10 per person, there's a ramp to there's a ramp to the second floor or a spiral staircase.
Lots of great info in English and Dutch.