Great backpacking park. Only go in the fall, winter and spring. Summer is way to hot and dry. There are so many sites you could go on a trip for a month and  never stay at the same spot. Lots of wildlife, flowers, amazing views and stars. Be prepared for hills though. The saying goes, "you dont go to Henry Coe to train for the Sierras, you go to the Sierras to train for Henry Coe." I can personally say last trip we did over 1200ft of elevation in under 2 miles. But well worth it, just plan your trip carefully.