Best way - Fly, in my opinion.its just such a long day by bus (12-13hrs) so if you have the budget to fly, go for it.
Best coach operator, they all offer something slightly different ie. Glass roof coach, small bus, free lunch etc. I'd suggest Real Journeys, Southern Discoveries or BBQ Bus.Edited: 21 September 2018, 06:17
Bus there - fab drive and the bus stops at all the best views - cruise - fly back
or helicopter in, cruise, helicopter out
no wrong choice :)