Muir Woods.

Muir Woods National Monument, located near Mill Valley, CA, is a breathtaking 558-acre forest renowned for its majestic old-growth coast redwoods, some over 1,200 years old and towering over 250 feet. Established in 1908 and named after conservationist John Muir, this park combines natural beauty with historical significance. With over 380 species of wildlife—including mammals, birds, reptiles, and amphibians—Muir Woods offers rich biodiversity for nature lovers to explore. Accessible trails like the approximately 0.8-mile Main Loop make it easy for families and all skill levels to enjoy the forest, while interpretive programs enrich the experience. Visitors can immerse themselves in the stunning scenery, and engage in activities like birdwatching, all while adhering to preservation guidelines that protect this unique ecosystem.