

In order to study the mysterious substances on the seabed, he followed his uncle, the geologist "Ironstone", dived deep into the Mariana Trench, accidentally was involved in the cave maze, came to the huge unknown world and discovered ancient creatures, and started an exploration of the undersea geocenter.
Happy Little Submarine: Journey To The Center Of The Deep Ocean was directed by Chao Zhang.
Happy Little Submarine: Journey To The Center Of The Deep Ocean holds an average rating of 10.0/10 on TMDB, and it lands best with fans of adventure, animation and comedy. Join the discussion below to add your take.
Happy Little Submarine: Journey To The Center Of The Deep Ocean runs for 1h 25min, and was released in 2021.
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