Sydney Harbour, off (Little) Sirius Cove near Taronga Zoo wharf. 14 May 2017.
Vessel at 33°50'46.85" S 151°14'10.34" E

Data from https://www.yachtcharterfleet.com/luxury-charter-yacht-25579/kokomo-ii.htm

SPECIFICATION
M/Y Kokomo II

Length 123.03ft /37.5m
Builder Lloyds Ships
Exterior Designer Jack Hargrave
Built | Refit 1987 | 2000
Model Custom
Beam 27.56ft /8.4m
Gross Tonnage 307 Tonnes
Draft 7.55ft /2.3m
Cruising Speed 13 Knots
Top Speed 15 Knots