I think you are missing the point the the outdoors there- the forest, the marsh, Owls Creek- is part of the museum and learning about marine life itself.
The second (new) building is called the Owls Creek Pavilion. Everything in there is to teach you about life around the creek. (Don’t know if it’s gonna stay that was after the renovation)
Everything in the main building (originally) teaches you about marine life starting from the rivers in the mountains (that literally is the first exhibit) past the fall line, in the Chesapeake bay, and out into the Norfolk Canyon in the Atlantic Ocean.
When they added the Restless Planet exhibit, that detour the path of the main story, but it’s still there.
The Restless Planet teaches you about Virginia’s prehistoric history (sounds weird) by connecting it to modern regions of the world that are in the same phases of existence that Virginia once was.
The museum has these big stories to tell that might be hidden in the causal patron.