Australia may be the world’s smallest continent, but it’s the world’s sixth largest country and the largest island country. How best to get around that big island? According to John Ives and his customers, the preferred method of travel is a model 685 Twin Commander. Ives owns and operates Heron Airlines, which specializes in long-haul tourist flights throughout Australia. The average Heron Airlines air safari tour lasts a week and includes 25 flight hours. That’s just the average. During a recent month Heron conducted a five-day, 12-flight-hours trip that originated in Sydney—Heron’s home base—and included stops in William Creek, Birdsville, Bedourie, Windorah, Charleville, Cunamulla, and Lightning Ridge before returning to Sydney. That relatively short journey followed an 18-day, 30-flight-hours marathon…