Cool-weather window is closing fast — here are the family-manageable picks before the trails get cooked.
Late April is the tail end of the good window. After May the lower trails get exposed and hot, and the next cool stretch doesn’t open back up until late October. If you’re loading the kids and heading north on I-680, here are four Mount Diablo hikes that earn the 25–30 minute drive — plus what to know before going.
## 1. Mary Bowerman Trail — the easy summit loopWhere: Summit parking lot, $10 vehicle entry at North or South Gate…