Starting at the Hermits Gulch campground it is 1.75 miles of constant uphill until you reach the gazebo with the Lone Bush ( not a tree). If you take the left fork you head down towards the Wrigley Memorial which is in the Botanical Garden. This makes for about a 4.5 mile loop. Free access to the Botanical Garden this way, although the Garden is not much to see. Not fun for kids unless they are into stair stepping at a young age.