Introduction: What? : This is a 26 miles long loop hike that start at the Hetch Hetchy dam, follow the trail along the lake, passing Wapama Falls. After the lake section the trail climb north to the high wilderness mountains area and heading to Lake Vernon. From Lake Vernon the trail is heading back south, pass near Laurel Lake and from there it is all downhill to Hetch Hetchy Lake and my hike starting point.