Trail Users are invited to come out anytime from 5:00pm to 9:00pm for a self-guided evening and nighttime trail walk out to the San Pablo Bay shore along a trail open to the public daily. The Trail will be decorated for Halloween. Beginning at 8:00pm each evening, Myrna Hayes, will guide a Mare Island Haunted Stories Walk along the San Pablo Bay Trail, returning to the Trailhead by 8:45pm. Nature and History of Mare Island and the Trail will also be woven into her tour. There is no registration required. Simply meet at the Trailhead at 8:00pm, nightly.