We went to an abandoned hospital - it had recently (less than a year) been abandoned, quite a new building (I guess late 70's but with a renovation in the late 90's), and everything had been boarded up, quite professionally. Also, there was a large stair to the 1st floor (2nd floor for americans) gallery, which was blocked off. It looked very amateurish at first sight, but I was not able to get around it.
However, we found 3 separate ways in, and created a 4th on the way out:
- The first guy climbed on a pallet that was already placed around a wall, onto the roof of a 1-story part, then the same way 1 more story up.. Then used a tiny (10 cm) ledge to climb around the gym hall, which had an open window. Entrance. The ledge was too scary for me though.
- I used the stairs to go to a small 1st story landing, then stood on the hand rails to get on the roof. All the windows looking out on the roof weren't boarded up, one was even open.
- Person #3 was a little more obese, and 55 year old, so a little less agile, and couldn't get up my way. He said to us we should get in, and he would look around. Later he called us, telling he had found a way in, using a similar method as #1 (pallet to wall to climb on roof) then #2 (open window looking out to the roof.
Both entry method 1 and entry method 3 used a pallet which was plainly visible, and this site was patrolled regularly by a very active guard (who we met). A good guard would've seen that and got them away...
However, method 2 wasn't really visible as it only led to a landing with a closed door.
The method we opened up was a door where we put a screw in the pocket of the bolt (door side). The door had no handle on the outside but jammed shut, but with some force you could jiggle it open.
Later that day we visited a location where at first sight, I thought "that's easy access" (only old fencing) but we've surrounded the entire perimeter, and found that it was nigh impossible to enter without having to check your tetanus first (very strategically placed assorted rust and/or barbed wire)
My father has an axe sitting on the shelf of his office, between the envelopes and the 2008 unpaid bills.
They say it's for cracking the ice on the pond (so the fish will get oxygen)...