As a flight attendant, I’ve grown accustomed to seeing the world from a birds-eye vantage point. In fact, the notion of lounging on a beach merely hours before floating through the sky is nothing really out of the ordinary. It is just part of my life. But until I drove to the top of Haleakala Volcano for aerial views of the Hawaiian island chain, I didn’t know it was possible to view the world from sea level and 10,000 feet—within the span of two hours—without setting foot on an aircraft.…