Celebrate the New Year with a hike to Bald Mountain. This 5.25 to 6.5-mile hike (final route will be determined by trail conditions) will include a climb of 1,500 feet, featuring fantastic 360 degree views of Sonoma Valley, Napa Valley, and San Francisco. Be prepared for inclement weather. Pack a lunch. Hike is free and no RSVP required. Parking fees apply. Meet at the main day-use lot.