10 AM to 12:30 PM Join Park Docent Michael Sheffield on an examination of the park's plant ecosystems. Learn how plants have adapted to flourish in the wide variety of terrain in the Park -- including Riparian, Mixed Fir, Chaparral and Redwood. Be prepared for 1.5 to 2 miles of walking over moderate terrain. $5.00 per person plus $8 per car parking fee. Under 18 free. Meet at the visitors center.