Checking for spots is time consuming. It can already start by sitting behind the computer for hours looking on Google Earth. But what looks good on the screen, isn't necessary the gold pot in reality. A gate might be in the way, or a rail you did not see in the photo, or it's too dark inside. But generators, lights, brooms, wire cutters are made for a reason. Not getting caught is the next challenge, or you can do it the Red Bull way and kindly ask if it's okay to do a photoshoot. Check what Dawid Godziek got to ride before it was finished. Go spot hunting now. 
After doing a BMX 'zine for ten years (1987 - 1996) FATBMX made it on the internet. The year was 1998. Here to stay.