How do i convince my parents to take me to El Centro,California this summer?

Well my boyfriend lives in California and we've never even held hands or kissed or anything because i live in Oklahoma and he lives in California. I want to go to California this summer and we'll just meet up at the mall or whatever but how do i convince my parents to let me go? They don't know that im with this guy so i cant just say hey lets go see my boyfriend this summer