Villa: Don't Come Here to Be Seen!

The security at Villa is getting out-of-control crazy -- the club has now created some sort of makeshift celebrity tunnel/cave to usher peeps in and out. Sherpa guides not included!

Leo DiCaprio christened the cave last night; TMZ's cameras weren't able to catch a glimpse of the always hidden star. Kim Stewart was there too ... and went, unblocked, in and out the front door.