... which resulted in a lot of this ...
And this wasn't a once-in-a-while thing, this was all day, every day. For a time Kai Tak's rwy 13/31 was the busiest in the world, up to 36 landings and departures an hour. Plus it's a major international destination so it was mostly "big iron."
There's a decent write-up on it at the Atlas Obscura.
https://www.atlasobscura.com/articles/kai-tak-hong-kong-airport-scary-landing
I’m surprised no one has mentioned the checkerboard seen on the approach chart right in front of the right turn to the runway.
That checkerboard is PAINTED on the mountain you will fly into if you fail to make the right turn. At least that is how I saw it sitting in the co-pilot seat of the C-123 we were flying into Hong Cong in 1969.