From SFBC:
Get your Spook and Ghoul on with NOPA VELO, the North Panhandle's bike group for neighbors and friends. Scare the caffeine out of Mojo folks and spin out to find the forlorn maiden who haunts Stow Lake in Golden Gate Park. Riders will be Monster Mashing and Ghost Busting all over NOPA afterwards. All level riders welcome, kids on own bike OK if with guardian. Pets on leash too. Lunch follows.