Nyoronyoro's Secret
Our friends have forgotten to tie their boat up in the storm and are attacked by hordes of electrified Hattifatteners, who want their sacred barometer back. Swimming about after the storm Moomin and Snorkmaiden find the most exciting things brought by the storm, but the most exciting find is undoubtedly made by Snufkin.
Aired 03/05/1990EP 5 - Nyoronyoro's Secret

1990
Moomin
In the remote and mysterious Moomin Valley live the Moomin trolls, gentle and peaceful creatures. Young Moomin and his family experience many strange adventures, both magical and mundane. Based on the children's stories by Tove Jansson.
(Source: Anime News Network)