Into the wild

Join Sonoma Ecology Center naturalists for a spring exploration of the expansive Calabazas Creek Open Space Preserve, a world of open meadows, creek crossings, wild flowers, waterfalls, butterflies and oak woodlands, located between Glen Ellen and Kenwood. This is an intermediate to advanced level hike, with a three or a six-mile option. 9 a.m. to 3 p.m. Free, but RSVP required to 996.0712 x110. Sonomaecologycenter.org.