What is that old cartoon show called where a bunch of strange creatures try to help other animals they used either an airplane or submarine reach their destination The was in 3D animatio?

You're describing the cartoon show "The Backyardigans"!

In each episode, the four main characters (Uniqua, Tyrone, Pablo, and Tasha) would embark on exciting adventures in their backyard, using their imaginations to transform everyday objects into extraordinary vehicles like a plane or submarine. They'd often help other animals, like the neighborhood squirrels or the birds, reach their destinations.

The show featured bright colors, catchy songs, and a unique 3D animation style that was quite popular with younger audiences.