In between the rain storms, we hiked this weekend the Matt Davis steep ravine trail (link, link). This hike starts in Stinson beach. Getting to Stinson Beach does require a strong stomach, as you go around the many, many corners along the Pacific Highway.
The hike is wonderful, especially after some rainy days, when the river and waterfalls are full of water. Overall, we did about 8 miles with 1500 ft of elevation change. It starts of steep through the redwoods, along the river. Near the top you get nice vistas of Stinson Beach and Bolinas.