For Valentines day 2005 Alinia wanted to do something special that did not involve food, so we hiked Cold Canyon at the south end of Lake Berryessa.
This is a fairly easy hike. The total length of the west loop was 4.4 miles with an elevation gain of 1300 feet. The hike starts 20 miles west of Davis, and took us a leisurely 3.5 hours. The parking lot coordinates (we missed it a couple times) are: N38 30.578 W122 05.800 .
We have a couple photos online. Contact me if you would like to see them.
The vertical profile: