Ruin of cement pillar off promontory near the new TKO bridge [????- ]
It's marked with the word "pillar" somewhere near the abovementioned site in the 1960 map layer.
I was there at Chiu Keng Wan a couple of days ago and found a lone pillar still standing in the sea close to the shore.
It can be seen in the middle of this photo:
https://maps.app.goo.gl/NwHm53ser6ZM9wZc8
Maybe at low tide, one can reach the pillar: