Ok so were headed back to Vegas in Feb 2015...went for the first time Feb this year...and already got the bug Last time we only had 5 nights....this time we have 15 nights (Feb 12 - 27). Before Vegas we have 4 nights in San Francisco...then the 15 nights in Vegas....then we have till March 4th when we fly out again from LAX. We did LA/Hollywood last trip...so were thinking of renting a car and travel from Vegas...Grand Canyon (overnight or weekend stop)...then onto San Deigo...go into Mexico for a day trip...then back up the LAX to fly back home (Perth, Western Australia). Any suggestions on what we can see/visit in those 4-5 days we have before flying out? We haven't seen anything else of the USA apart from our last trip (LA & Vegas only). Or any suggestions of a better way to use our last few days in the USA?