The views from the dusty Hillcrest's (map) hiking trails are spectacular - much more so than what I've shown in this photo.

If you're keen to amble though the vineyards, along one of the trails, arrive by 8am, take an exploratory walk through the vineyards, and end off the outing by visiting the estate's restaurant for breakfast. Be sure to take plenty of sunscreen and water along - it's surprisingly easy for a quick walk to turn into a two-hour trek.