Kai Tak Inside the Harbour Circling to RW13.
mustafagander;
The RW13 " inside the harbour " circling approach off the ILS for RW31 appears to have been something of a Cathay secret as your mention of it is the first I have seen on KAI TAK nostalgia. I did it for years as one only had to ask ATC for the circling approach and permission was always granted subject to traffic. There were a few extra things to think about but easily worth the effort.
I never did it at night ( wish I had now ) as the 180 degree DESCENDING turn back onto RW13 with the chequer board hills nearby was just a little intimidating. ATC banned it about the time the Tristar was introduced.
Prince of Dzun.