Discover why muir woods and the northern california wine country are two of san franciscos most popular day trip destinations on this great value tour combo start the day with a refreshing stroll through muir woods national monument where youll explore a spectacular redwood sequoia forest then visit the wine country for some superb wine tasting at napa and sonomas boutique and family owned wineries such as madonna cline and mayo bonus view alcatraz and the marin headlands from the gol