There are loops, but I for one would not use them for overnight storage. Agree that all that area is dodgy. The Epworth Hospital might be a better bet in that area - good cctv at least but there a lot of crazy drivers in a hurry and hunting a parking spot. And you see some really creative parking too. I’m talking about the Erin St entrance, not the Bridge Road one. Getting off Wellington Parade is a good idea - there are parking spots in East Melbourne side streets and it’s a nicer area. Most of the inhabitants are not bike people so some tact in where you park your bike would be required.