A sustained steep grade and exposure make this a tough but doable option as an out-and-back hill climb.
From the southeast corner of Lake Poway and the Lake Poway Trail
, look for this trail heading east up the ridge. The start of the trail is a wide fire road.
After a mile or so, you'll come to a clearing where the trail will begin to narrow down as it winds through the boulders.
From the clearing, it's another ~1.6 miles to the Potato Chip Rock
with little shade so plan accordingly with water and sun protection.