Danielle C. on Flag Hill Loop Trail
Such a beautiful trail! Spring is my favorite time to visit Sunol! This loop is difficult, but the views are worth the sweat! BRING SUNSCREEN AND PLENTY OF WATER! There are cows on this reserve, do not pet the cows! The mommas get very testy! Cows are not aggressive by nature, but will charge is they feel threatened or you get too close to their babies!
As of March 2017, the first part of this trail is washed away due to the rain. I do not believe these other reviews are recent. The first spur of this route is completely unmaintained. You need to crawl through a barbed wire fence to get to the trail. There is very limited parking. I think other reviews are mistaking this for a different starting point.