This summer marks the weekend event of the North California Pirate Festival, a day to dress up as a pirate, go to a fairgrounds, and be all around nautical! It's sorta like a Renaissance faire, but with more Pirate focus!
June 15-16 is the actual event; I will be attending on the 15th. This is located in Vallejo, and it's overall a really fun experience! It tends to be really hot those days, though, so be sure to pack a water bottle!