A picnic ground and trailhead at the base of the hill lead to steep trails up to the boulder-strewn valley rim. Hikers and horse riders to the Skyline Wilderness Park are greeted with pretty views of the valley and a respite from the wine-soaked tourist crush of the valley floor. Some moderate degree of cardiovascular fitness is advisable before setting off.

This is paradise not only for those interested in garden design, landscaping and art, but also for those who love the finer things mother nature has to offer. This ever-changing series of walk-through gardens offers the viewer a magnificent haven in California's beautiful weather. Cornerstone also hosts seminars and lectures on landscaping and garden design.

Situated near Glen Ellen, Quarryhill Botanical Garden is a 25-acre (10.12 hectare) haven of Asian plants. The botanical garden is home to some rare species, among which the Acer pentaphyllum and Liriodendron chinense are just two. No visit to Quarryhill is complete without visiting the beautiful Asian Woodland Garden, with its lush green foliage, water-lily pond and trails. Quarryhill Botanical Garden is open throughout the year, with self-guided, docent-led and school tours offered.