Vista Venture up Silverado Trail (switchbacks toward Bedford Peak), Silverado Canyon, Orange County, Difficulty=moderate.

After school or work, jump on the trail for some elevated stress relief. Follow a naturalist on a series of steep switchbacks to amazing views of the valley and the evening sky. Identify local plants & wildlife. Relax at a high point before descending back down into darkness. National Forest Adventure Pass required to park (available at Canyon Market). $5/day pass, $30/annual pass. Difficulty: Moderate (3-4 miles round-trip, single track trail, rugged terrain, significant elevation gain)