Yes, it's a biological/habitat reserve. The dunes are natural-looking, the beach is not crowded, the trails are appealing. But everyone keeps missing a great part of the Reserve. There is a very informative Visitor's Center! Here you can see a right whale replica suspended from the ceiling, a telescope trained on an active bald eagle's nest, a couple of (sad) sculptures made out of trash picked up at the beach, a number of interactive exhibits, lots of sea birds perched nearby, really great docents and lots more. This is one of 27 or so national estuarine research reserves in the US. And since it's also a research facility, there are also many research posters to read and learn about.