Ashes Buoy [????-????]
Position of marker is a guess. The buoy is mentioned in Gazette entry No. 336 for 21st October 1910:
Harbour Master’s Department.
No. 336.—It is hereby notified that the depositing of refuse in the waters of the Colony is strictly prohibited except at the undermentioned places:—
1. West of the Ashes Buoy at Kau I Chau, West of Green Island;
* 2. To the South of Cape Collinson on the early ebb tide :—
(a.) When the weather conditions at Kau I Chau are not favourable, and
(b.) With special permission from the Harbour Master.
Basil Taylor, Commander, R.N.,
Harbour Master, &c.
21st October, 1910.
* Note.—Special permission must be obtained from the Harbour Master to deposit refuse of any kind at any other place.
It's an early mention of Hong Kong's waste disposal, something I haven't seen discussed elsewhere. I wonder if the Ashes Buoy is related to Kennedy Town being known as "Lap Sap Waan", ie Rubbish Bay? The name could refer to the place where rubbish was loaded, or the place where any floating rubbish dropped at the Ashes Buoy would wash back ashore.