I went to Carleton and there were some sweet places to stealth around. Since I was in the Architecture program, the security knew we had 24hr building access and that we were always doing random weird shit around campus. So if we ever got booked, we made up some excuse like looking for junk building materials or taking random pics etc..
There were some sweet areas at that campus, its connected by underground tunnels. Some building have sub basements with weird machinery and mainframes, loads of records and scary ass wildlife etc..
The dude that started Infiltration.org was a Canadian, named Ninjalicous he died like 5 years ago though.