Jack London State Historic Park in Sonoma County is simultaneously a tribute to the author of "White Fang" and "The Call of the Wild" and a preserve dedicated to the natural surroundings he adored. The park's 1,400 acres include a museum dedicated to London's writing career and life as an adventurer (with occasional piano performances by the staff), the ruins of the Wolf House (a 26-room mansion that tragically burned down shortly before London was set to move in), and over 20 miles of hiking trails.
On March 14th, the park held a ribbon-cutting ceremony to celebrate the opening of the East Slope Sonoma Mountain Ridge Trail. The 13-mile round-trip hike will be open to hikers, bikers, and horseback riders, and will offer "sweeping panoramas from the top of Sonoma Mountain, finding different views than ever seen before."
To celebrate the trail's opening, the park is offering two guided hikes. The first, on March 28th from 9 a.m. until 2 p.m., will be led by naturalist John Lynch. The second, on May 2nd, will be led by former board member of the Valley of the Moon Historical Society Dave Chalk. Both are free. However, visitors will need to pay the entry fee for the park, which is $10 per vehicle, or $5 per walk-/bicycle-in.
If you can't make it to either hike, the park also has a wide variety of events occurring throughout the year, including their famed outdoor concert series.