If you plan to visit Arsenal Island, be sure to call or email ahead to reserve a spot on the tour of the Lock and Dam, too. You will have to go through security to visit the Center, so be sure your car is uncluttered and all adult passengers have an ID. If you take the Lock and Dam tour, they show you how the dam works and, if ou are lucky, you can see the Government Bridge rotate when a barge goes through. You can also pick up a map of the island here so you can be sure to hit the other spots on your visit. Otherwise, the Visitors Center is pretty basic.
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