The seventh annual Marin County Half Marathon, 5K and 10K starts and finishes at McNear's Beach State Park, just north of the Golden Gate Bridge. Each route runs along the water, and the half marathon and 10K are half road and half trail, with some hills through China Camp State Park to give runners a challenge. Hosted by the Sustainable Sports Foundation, the goals of the race are to have zero waste, be carbon neutral, and donate all net proceeds to charity--this year's event will help provide swim lessons to underprivileged youth in Marin County. The event uses power generated by solar energy, green portable toilets, reusable stainless steel water bottles, organic and locally sourced food and beverages, and recycled materials for race shirts and medals. Participants are encouraged to bring old running shoes to be recycled and race clothing to be donated to needy organizations.