Begin at the corner of Oak and Stock Farm Road, and walk Northwest along the wide paved path along Stock Farm Road. Follow the path as it turns West, following the perimeter of a Golf Course, over a bridge, and eventually running alongside Sand Hill Road. Continue West, passing beneath Santa Cruz Ave via an underpass. Continue from the underpass, following the edge of the golf course, until the trail emerges alongside Alpine Road. After a few blocks along Alpine Road, the trail becomes much rougher (older pavement) and narrower, occasionally immediately adjacent to busy Alpine Road, and other times “invisible” as a quiet road off of Alpine Road, next to residences. I recommend turning around as soon as the rough path begins and returning the way you came.