Try poppers early and late in the day. This is a small lake that is fun to fish when the bass are on their spawn. Spring Lake is only a one to one and a half hour drive from the Bay area. Float tube needed to access good water. Park requires use of a lifejacket.
Fishing is fair.
Some caddis and mayflies hatching in the late afternoon and evening, but not much dry fly action yet. Attractor dries might be worth a shot in the shaded areas. Stony Creek Clear, moderate flow, low 40 F's. Fishing is spotty, but improving. A few caddis and mayflies are starting to show.