Islay Hill Trail is a hiking trail in San Luis Obispo, California. It is 2 miles round trip and within Islay Hill Open Space. The hike offers great panoramic views of San Luis Obispo and Edna Valley from the top of Islay Hill. Leashed dogs are permitted on this trail.Begin the trail from Sweet Bay Lane, walk around a locked gate, then cross a short footbridge to find the trailhead sign. The trail gradually wraps around a wide valley and becomes fairly rocky as it steeply ascends.At the top of Islay Hill the panoramic views of San Luis Obispo, Edna Valley, Cerro San Luis, and Bishop Peak are stunning.