I set out for what I thought would be an easy trail run around Lake Chabot, but those 1100 feet of climbing came with some short, hard uphill and downhill sections.
It's a really nice lake, and it appears to be a quick escape from the city for many people. Fishing is the most popular activity there and judging by the photos in the marina cafe, there are some monster trout and catfish lurking in Lake Chabot!
WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.