13 June 2009 Excellent time on the Walking Tour with Grand-Adventures along the south rim.  Darryl is a great friendly guy and a very knowledgeable guide.  The new bridge going in over the dam was really impressive.  It's pretty sad that there is such a drought going on and that the water level is down so much.  Breakfast & Lunch were good (especially lunch -as it seems that being in the thin air at the Canyon makes you really hungry).  The landscape at the Canyon seemed so unreal.  Great trip all around!!!!  Thanks Darryl.