Shadow is a 2013 build that accommodates eight to 10 guests in four staterooms. She has a foredeck hot tub, plus sunpads and lounges for catching some rays on the sundeck.
Her top speed is 20 knots, which makes her plenty fast for exploring a good bit of the Australian coastline or islands each day. Itineraries are available in Sydney as well as in the Whitsunday Islands.
The weekly base rate is 100,000 Australian dollars (about $76,500 as of this writing) to charter Shadow in Australia. Any reputable charter broker can tell you more or help you book a week on board.