Bay seniors will forgive me for letting the secret out about the Corte Madera Creek Trail which is not in Corte Madera, but off Skyline Boulevard in the Santa Cruz Mountains. Its 2,817 acres includes the lush 6-mile Tafoni Loop Trail which ribbons alongside creeks, redwoods, Douglas firs, madrones, huckleberries, gooseberries and creambushes. The trail is mostly level. In the fog it is even more magical and likely to spur you to write a sonnet or two. No fees. Dogs not allowed but sadly, cyclists are.