Mr. Peter Jenkins, 64, who was diagnosed with prostate cancer, and was given the all-clear in January following an early detection, is all set to launch from the Sydney International Boat Show at Darling Harbour.

The scheduled event is an eight-metre ''rubber ducky'' rigid inflatable boat bound for the ''over the top'' of Australia to Perth.

The thrilling ride over the ocean, which will cover a distance of 9500 kilometres, will apparently take 67 days to complete.

Phillip, 57, Peter’s younger brother, who was diagnosed with a benign brain tumour but was later declared fit, will accompany his brother.

The brothers will start tomorrow at 11am, and will stop off at around 30 locations to advise men about prostate cancer and raise a fund of $200,000 for its research.

But things are easier said than done, there are heaping challenges along the way, like a possible encounter with the anomalous estuarine crocodile.

Those sailing disasters are apparently getting more hostile as the mating season is almost here.

However, the prevalent challenge is the size of the currents and tides. During their gutsy journey, they will certainly face some of the world’s largest and deadliest tides and currents.

Despite the life-threatening risk, the brave cruisers are overwhelmed with a deep sense of pride, confidence and above all, a passion to perform. The biggest thing is that they are fearless.

Their arrival is anticipated in Perth at specifically 11am on October 6.