Marine Boy was an animated series from the late 1960s. It was produced in Japan and dubbed to English. Marine Boy worked for Ocean Patrol whose job it is to keep the world's oceans safe. Together with Piper and Bolton, Marine Boy crewed the patrol boat P1.
Marine Boy was able to swim really fast thanks to his propellor powered boots and he could stay under water for long periods by swallowing "oxygum". He was helped out in his adventures by a white dolphin called Splasher and a mermaid called Neptina. Neptina wore a huge pearl with special powers on a necklace.
One other regular character was a little boy called 'Cli Cli', he always tried to help Marine Boy but usually ended up causing more trouble.