Sailor Point.
Sailor Point is a private, city-owned parkland area in the Hook Point area on the North Shore. It's the site of a series of gun-emplacements (the guns themselves have long since been removed) guarding against the possibility of coastal attacks during WWI and WWII. Now, it's abandoned but it remains undeveloped. There was a half-hearted effort to make it a historical site, but it's largely overgrown.
The US MIlitary,AEGIS, and the ECPD use it for training grounds for team-tactics, etc. It's also occasionally leased out to private firms for similar training. It's also been used occasionally, for paint-ball tournaments. The area is swept regularly for unexploded ordinances and the like, and it has to be decalred safe after any such training purposes. There are rules and guidelines in place for organizations to clean up after themselves. Nobody wants an accidental death on their hands.
Of the buildings that remain (all low, squat single-floor buildings, most are only one room, very utility-oriented) have all been welded shut.
There are four open-air gun-emplacements (like
Disappearing_gun_emplacement.jpg and
Macaulay-Point-Park) and an observation platform at the highest-point in the park.
There is a series of four other buildings--temporary barracks, latrine and ammunition supply dump (all inactive, empty shells). Only one building is active and maintained, and it's right at the front entrance. A small parking-lot sits beside it. There is a general-purpose meeting room and an open-air covered picnic area with an open-air barbecue grill set-up (you'll need to provide your own charcoal or whatever).
Cement paths--decades old--line the park. Most are overgrown and encroached upon by the local flora. Some of the local wildlife also wanders through, suggesting that the fences that surround the entire area might not all be contiguous.