Sydney Harbour, rounding Bradleys Head off Athol Bay. On commuter run Manly to Circular Quay 20 November 2015
Vessel at 33°51'18.78" S 151°14'27.99" E

Data from designers web site

24m Tourist Catamaran

This low-wash passenger catamaran was built for Fantasea Cruises in Sydney. The vessel accommodates 200 passengers. Cruising at 25 knots with 2 Yanmar 6HYM-WET @ 441kW, contract speed was achieved at 85% MCR. With a layout designed around comfort and passenger flow, this vessel is the beauty of the Fantasea fleet..

More at http://www.one2three.com.au/c24f.html