Surf, Nomads if you can get into the a flight DO NOT GO FOR THE B FLIGHT, Cal Cup, Ballistic is solid for boys, Celtic if you're a bit younger, NHB, there are MANY good tournaments i did not list.
If your in so cal than you wont mind the vegas tourny, i think in october, surf is cool we will try to get in this yr, its to late to join the cerittos memorial day tourny, that one is cool as well
For girls, both Surf Cups, summer and Thanksgiving. For boys, Surf in the summer, Nomads at Thanksgiving and I hear Surf is going to start a Thanksgiving tournament for boys.