When I was a small child, we used to come every summer; it's a great place to both learn about history and run around pretending. Some of the gun batteries are open and can be explored and climbed on. There is an excellent interpretive center/museum run by the Friends of Fort Stevens. There are simply so many structures here that many are neglected or forgotten and can be easily accessed by a serious explorer. This is the site of the only attack on the mainland U.S. during wartime, and there is some fascinating and important history here.