North Bay Trails by David Weintraub and revised by Mary Burk and Ben Pease, is a comprehensive guide for exploring trails in the Marin, Napa, and Sonoma counties, including National, State, and Regional parks. This book is an important reference for hikers, runners, and outdoor enthusiasts who want to escape the city and breathe in a little fresh air. Walk lengths vary from 2-mile jaunts to all-day treks, with a few overnight camping opportunities too. With 60 walks and numerous nearby wonders to visit, This book is the only trail guide covering Marin, Sonoma, and Napa parklands together, rather than focusing on one county or park complex alone. The authors have provided a broader-than-usual assortment of best routes, along with keen observations on local wildlife and regional history. This book benefits readers by providing overviews of each county where the trails are located, offering tips on what animals, plants, and trees to look for, and outlining clear directions on how to reach each trailhead to begin an outdoor adventure. Seasonal guidelines are also included, along with ways to contact the parks for further information.