Trust me. If they dont want to go far from Camarillo then Go to Seaward Ave in Ventura. Its right off the freeway and no chance of getting lost.
State Beach with toilets
IN n OUT burger.
Grocery store
Sushi
NIce walk up the beach to Ventrua Pier and only a few more minutes to Main ST. shops with Ice cream/coffee/movies and great thrift stores full of weird junk.
5 minutes to the Mall (not great but its a mall after all)
Casa Soria Mexican Food or Corrales Mexican Food
(A little ways off but worth finding)
Ventura is cool.
Mrs. Olsen's Coffee Cup at Hollywood by the Sea for Breakfast = Yum
Maybe I'll be eating there Saturday.
If they want more of an adventure then Malibu is always just down the road.