Im pretty sure there actually called the Cantamar sand dunes...
Well there in between rosarito and ensenada been there like three times...
Not bad on sundays, alot of people like to mess around there...
If I were you I'd plan for a presidents day weekend trip in February.
You'll see some nice rails and quads at the time...
Is it worth the trip/drive? ? ? aaaaafirmative! Get there dude!