The horse trail bisects the Ice Age Trail to the northeast (straight and slight right for 50Kers). Look for a yellow marker (painted rectangle on trees or rocks). This is the identifying marker for the Ice Age Trail along the entire course. There will be sentries there to help guide you through this intersection.
The total flight duration from Sydney, Australia to Rome, Italy is 20 hours, 47 minutes. This assumes an average flight speed for a commercial airliner of 500 mph, which is equivalent to 805 km/h or 434 knots. It also adds an extra 30 minutes for take-off and landing.
While Australia is a fair distance away, the flight is not nearly as daunting as you may think. The flight from Los Angeles to Sydney is around 14 hours, and the flight from Los Angeles to Melbourne is around 15 hours. When travelling to Australia from the United States, Los Angeles and San Francisco are your only 2 departure options.