Mare Island San Pablo Bay Trail is a four mile round-trip trail for hikers of all skill levels. The trail offers scenic views of San Pablo Bay, Mt. Diablo and Mt. Tamalpais, and the Sonoma and Napa Valleys.
Have you visited Mare Island San Pablo Bay Trail? Be the first to tell others about it!
Please describe the place or activity, explain what you liked best or least, or give any special tips. Sharing your thoughts really helps other visitors. Thank you!