We stayed at the Casa de Fruta RV Park in October, during the Renaissance Faire season.
The event is right next to the RV park on Casa de Fruta land and is just a quick walk to the entrance. The faire is an annual event and draws people from all over the world. Dress up yourself to really make it a day! The Faire runs weekends September and October. Check the website for exact dates: http://www.norcalrenfaire.com/index.html
Here is a slideshow of our day!