Dragon and I have done some exploring of the North Oakland Sports Center. Last weekend Bevan and I went up to check it out, and found some new cool stuff. It was a hero dirt day, so we both made the climb, and Bevan made the crazy chute that was his target for the day, both down the middle and off the drop. We also found a mini pump track, and a cool trash/art install up on the ridge.
Not really a destination riding spot but a nice connector that gives an extra dirt option on the way up or down.