LUNCHTIME NATURALIST WALK, $20.

We’ll walk into the Upper Arroyo, north of JPL, and explore the chaparral and riparian plants, and you will see the highly versatile yucca plant. Meet at the intersection of Ventura and Windsor in Altadena. From the Windsor exit of the 210 freeway, drive north on Windsor until Ventura, where you will have o carefully park in the parking area on the west side of the street, overlooking the Arroyo Seco. Then, we will drive north into the JPL East Lot, and walk from there.