Sydney Harbour, under Georges Head. 12 April 2018.
Vessel near 33°50'27.54" S 151°15'45.71" E

Marine Traffic data:
FELIX
IMO: 6908709
MMSI: 319492000
Call Sign: ZCPG8
Flag: Cayman Is [KY]
AIS Vessel Type: Pleasure Craft
Gross Tonnage: 1622
Deadweight: 341 t
Length Overall x Breadth Extreme: 70m × 12m
Year Built: 1969

For photos of the luxurious interior see https://www.yachtcharterfleet.com/luxury-charter-yacht-23518/felix-photos.htm