Marine Boy

From: Wikipedia.org
Marine Boy was one of the first anime cartoons to be shown in a dubbed form in the U.S. (1960s), and later in Australia and the United Kingdom.

It was produced in Japan as Kaitei Shônen Marin (海底少年マリン - "Undersea Boy Marine") from 1966 to 1967 by Minoru Adachi through K Fujita Associates Inc. It was released by Japan Tele Cartoons and Seven Arts Television worldwide. The plot revolved around the undersea adventures of a boy who was able to breathe underwater by chewing a special chewing gum called "oxy-gum". He was powered underwater by his propeller boots and armed with a sonic boomerang. Marine Boy's father, Dr. Mariner was part of the Ocean Patrol, an organization set up to maintain peace and security in the Earth's oceans.