Does anybody know the title of this cartoon where in the intro or in the end credits there is this blue flying mechanical ship shaped like a turtle or smthing and it is flying in a cave or smthing. I know this isn't much, but I have this image stuck in my head since I was a child and I remember watching this cartoon and likeing it.

Really appreciate for any help.

HaH... found it... the show was called Spartakus and the Sun Beneath the Sea... and the turtle flying space ship is called Tehrig... =)