Although I didn't do it this year, the Tour of Napa Valley in August is one of my favorite rides. I prefer the 100k to the 100 mile though, because the food is better on the metric (and it is all about the food). The Holstein 100 is always the day after Napa, and the metric there is fun too.

I did the 100k rides at the Sequoia and Monticello Solano centuries this year for the first time. Both were very pretty courses (with good food!), but Sequoia was really tough, and MSC had pretty heavy boat traffic.

I always like Grizzly Peak and Primavera too (the metrics of course ).