Overtaking on the other side of a traffic/pedestrian island in a large vehicle

For context, I'm a bus driver and in rare cases on my route, people park close to traffic or pedestrian islands which make it hard for me to manoeuvre around them.

Whilst the front of the bus may fit through without causing any damage to the car, it's the side of the bus that could possibly end up getting caught on the island and would cause damage to both it and the bus.

Although it's illegal to use the "wrong" lane when navigating an island, what is the definitive thing to do in this situation?

Obviously I wouldn't do this in my car because it's smaller and I'm likely to fit through even though the car hasn't left enough room but in a bus, it's a different story.

On three separate occasions whilst driving the bus, I've had to use the right lane to navigate the island because people have parked close to it and the bus wouldn't be able to get through without any damage which whilst is a risk, the alternative is to get stuck and not be able to continue the service.