Turns out the water was about fifty degrees and fast flowing, so although the baby's bottom was bare, only her legs up to the knees went into the cold, green water.
Putah Creek is a lovely mint-tea color, clear near the shore, wide, and apparently full of good eating trout, or so some high school boys told us. Oaks grow all around, and cottonwood trees drop so much white fuzz on the trails it looks like snow.
The town of Winters is close by with plenty of provisions and nearby camping (we camped in a fig orchard the night before). The fishing area we hiked is in verdant foothills dotted with oaks and golden poppies.