Golden Gate Transit operates bus service between San Francisco, Marin, and Sonoma counties. Service tends to run on time; buses are clean and comfortable. All buses are wheelchair accessible, and all accommodate bikes. Youth cash fare is discounted 50%. Children age 5 and under ride free when accompanied by an adult on all routes (limit 2 children per adult). Check the website for schedule and fares. You can buy ticket books over the phone, online, or at select locations. By phone: 415.455.2000 (Marin); 415.923.2000 (SF); 707.541.2000 (Sonoma). At select locations: Check the Golden Gate transit website for details.