Up And Down Hills

I'm in San Francisco this week and found a great deal at the Renaissance in Nob Hill (aka Snob Hill:)  The hotel is at the top of the hill in San Francisco.  For the past two days I've had time to go out running.  It's been awesome- I've run down to the Golden Gate Bridge and the Presidio.  I've done almost 10 miles each day - awesome.  But now my butt and thighs are KILLING!  Those San Fran hills are murder!  But the view from the top is totally rewarding!