Any info on theys doors? Rattay

OK this has been driving me potty all day. I sat for an entire game day to see if any one came out so I could dart in but no.
The first door if the picture has not loaded is as u come into the arena area from the city side gate turn immediately right the hard right again after gateway up the steps in the shade and at the top right hand turn and the door.
Un usable keeps you three feet away at all times. What’s that all about l??