Special Route Qualification

[Adrian B]

Hi all, A question for any international drivers here, especially Anthony J

I am doing a busines trip to Noumea late May and noticed this Photo by the aforementioned celebrity photographer and occasional Pilot Anthony J.. It had a comment

"Remarks: On final approach to Runway 11 at La Tontouta. You can see why Noumea is one of the Qantas destinations that requires a special 'Route Qualification', with significant terrain to the east!"

That said, and the photo explains why, what type of Special route qualification would you need to carry out for a location such as this? Sim time against certain procedures?