Examine the changing season with park naturalist John Lynch on this autumn ramble to the ancient Redwood and Fern Lake. John will help you identify the variety of oaks that live along this trail, while you look for "oak apples", and "flying saucer" galls. Learn about "Acorn Time" and the importance of oaks as a key stone species in the Valley of The Moon. Listen for the "waka waka" of acorn woodpeckers and watch for their black and white plumage and bright red crowns as they busily harvest the years abundant acorns. With Halloween around the corner, you might just discover some "witches broom", as you look closely at different kinds of spider webs, and learn about our local bats.