Thats a bit of a shame if just the grounds surrounding it are charged to be on.
Most of the lighthouses here, the grounds have been turned into state parks, and they are free to go and chill out at, thats why a bunch of my pictures have people fishing off the rocks and stuff haha.
People bring campers and grills and stuff and have whole day cookouts and stuff there. Its where i go to think about shit too haha.
But, there are also like, hundreds of lighthouses around here haha, so maybe its just a matter of its not really that big of an attraction.