The Muir Woods, Sausalito and Wine Country Tour provided by a Taste of San Francisco Tours was wonderful. Both of the tour operators where knowledgeable, professional, and ensured we had a wonderful time on our tour.
I would highly recommend this combo tour which will introduce you to other areas of San Francisco, Sausalito, Sonoma, and Nappa which you will want to come back and visit.
Walking through Muir Woods was AWESOME! A quiet peaceful place (outside of a view very loud humans) in nature. This is worth the casual walk through to see some of the redwoods.