Perfect hike- sort of

Well, on yesterday's hike we had a view of the San Tan Mountains and today we hiked 2.5 miles (about 4 km) up a trail to one of the many peaks of the San Tans.
The photo is a shot I took part way up the trail, looking back.
It was a cool day and a perfect hike.
The rock that tripped me and resulted in a skinned/swollen knee did not mar the perfection since it didn't keep me from hiking (it happened early on the trail) and it is actually fairly expected (I am a klutz).
I am always prepared with an ice pack in the freezer so I am now enjoying 20 minutes on and 20 minutes off... I wonder what is magical about 20 minutes? :)