I have done a lot of urban exploring over the years, but recently found out that it has a name and there are a lot of people doing it formally. I've been in drains, abandoned buildings, steam tunnels, attics, basements and construction sites. Tunnels are probably my favorite. I love sneaking around in service areas of hotels and off limits areas of places in use. Is there anyone else on BF that does this sort of thing? If anyone in Utah wants to explore, PM me. It can be really fun, and you get to see some neat stuff that most people never know exists.