On the first day of February I happened to be in the Walnut Creek area, so I went for a hike to the Castle Rock Regional Recreation Area. I was with two friends, and one of them knew the trails, so we started the climb on this beautiful, clear and warm Saturday afternoon.
It was really steep; at times we had to pretty much rock climb, but the views on the way, and eventually conquering the summit paid off all the sweat and tears.