Hopland's Solar Living Institute packs a powerful--and fun--environmental message.

In a region known for its progressive views and focus on the environment, the Solar Living Institute is right at home in Hopland, California (about 90 miles north of San Francisco). The sprawling complex focuses on all things sustainable, and how we can incorporate them into our homes and lives. The institute includes the Solar Living Center, a large solar array, an organic farm, and a biodiesel fueling station. Tour the lovely Solar Living Center, and you’ll see and experience many different kinds of sustainable architecture and alternative energy generation technologies at work. Be forewarned, though: you may want to move in! Admission is free; donations are encouraged. Sign up in advance for one of the popular hands-on workshops, or time your visit in August to catch the annual SolFest celebration.

The Katmandu Fall Festival celebrates the many cultures of Nepal, with traditional Nepalese cuisine, a marketplace featuring antiques, jewelry, clothing, art and crafts and a photo gallery of the many places and faces of Nepal, home to world-famous Mt. Everest. Both days will feature ongoing live entertainment, showcasing traditional music and dance from the region, including Tibetan, Pakistani and Indian classical performances. Well-known Sonoma County wine and beer will be available to enjoy, along with lemonade, cookies and other light refreshments. All proceeds from the event will benefit the Children’s Medical Aid Foundation, a 501(c)(3) non-profit organization transforming the lives of Nepalese children with congenital defects.