Don't worry, folks, I'm back safe and sound. As it turned out that I was much faster than expected I had a leisurely breakfast at Phantom Ranch and added a detour to Plateau Point, a viewpoint well worth the effort.
Having started at 5.20am at South Kaibab trailhead I arrived at Suspension Bridge at 7.45am, reached Plateau Point at 11.45am, had an extensive lunch break, left at 1.15pm and arrived at Bright Angel Trailhead at 4pm. A grand day in Grand Canyon!
Sunrise on South Kaibab trail
The famous Phantom Ranch, a surprisingly bucolic place
Just half way up!
Don't hesitate to see more photos at my picasa album