28 Nov 2015 Hikes > 5 miles, alameda county, east bay, moderate-to-difficult, wildlife Sunol Regional Wilderness 1895 Geary Rd, Sunol, CA 94586 8 miles // 5-6 hours // mostly exposed Moderate-to-difficult trails. We got off our trail plan and kept going! Share with: Nearly 8 miles today. I'm feeling it already! Worth it.Ass breaking trails for realz.So much beauty.We climbed to the very top of the bottom left summit... And continued for miles.