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Nadia: The Secret of Blue Water was an anime series that ran from 1990 to 1991. In total 39 episodes of Nadia: The Secret of Blue Water were aired. With a total of 6 reported filler episodes, Nadia: The Secret of Blue Water has a low filler percentage of 15%. A teen acrobat of mysterious origins and a young inventor find themselves entangled in a sinister plot that involves the fate of the world.
| # | Title | Type | Airdate |
|---|---|---|---|
| 1 | The Girl at the Eiffel Tower | Anime Canon | 1990-04-13 |
| 2 | The Little Fugitives | Anime Canon | 1990-04-20 |
| 3 | The Riddle of the Giant Sea Monsters | Anime Canon | 1990-04-27 |
| 4 | Nautilus, The Fantastic Submarine | Anime Canon | 1990-05-04 |
| 5 | Marie's Island | Anime Canon | 1990-05-11 |
| 6 | Infiltration of the Secret Base | Anime Canon | 1990-05-18 |
| 7 | The Tower of Babel | Anime Canon | 1990-05-25 |
| 8 | Mission to Rescue Nadia | Anime Canon | 1990-06-01 |
| 9 | Nemo's Secret | Anime Canon | 1990-06-08 |
| 10 | A Crowning Performance by the Gratan | Anime Canon | 1990-06-15 |
| 11 | New Recruits for the Nautilus | Anime Canon | 1990-06-22 |
| 12 | Grandis and Her First Love | Anime Canon | 1990-07-06 |
| 13 | Run, Marie, Run! | Anime Canon | 1990-07-13 |
| 14 | The Valley of Dinicthys | Anime Canon | 1990-07-20 |
| 15 | The Nautilus Faces Its Biggest Crisis | Anime Canon | 1990-07-27 |
| 16 | The Mystery of the Lost Continent | Anime Canon | 1990-08-24 |
| 17 | Jean's New Invention | Anime Canon | 1990-08-31 |
| 18 | Nautilus vs. Nautilus | Anime Canon | 1990-09-07 |
| 19 | Nemo's Best Friend | Anime Canon | 1990-09-14 |
| 20 | Jean Makes a Mistake | Anime Canon | 1990-09-21 |
| 21 | Farewell... Nautilus | Anime Canon | 1990-10-26 |
| 22 | Electra the Traitor | Anime Canon | 1990-11-02 |
| 23 | Young Drifters | Anime Canon | 1990-11-09 |
| 24 | Lincoln Island | Filler | 1990-11-16 |
| 25 | The First Kiss | Anime Canon | 1990-11-30 |
| 26 | The Lonely King | Filler | 1990-12-07 |
| 27 | The Island of the Witch | Mixed Canon/Filler | 1990-12-14 |
| 28 | The Floating Island | Mixed Canon/Filler | 1990-12-21 |
| 29 | King vs. King | Filler | 1991-01-11 |
| 30 | Labyrinth in the Earth | Mixed Canon/Filler | 1991-01-25 |
| 31 | Farewell, Red Noah | Anime Canon | 1991-02-01 |
| 32 | Nadia's First Love...? | Filler | 1991-02-08 |
| 33 | King's Rescue | Filler | 1991-02-15 |
| 34 | My Darling Nadia ♥ (Series Recap) | Filler | 1991-02-22 |
| 35 | The Secret of Blue Water | Anime Canon | 1991-03-01 |
| 36 | The New Nautilus | Anime Canon | 1991-03-08 |
| 37 | Emperor Neo | Anime Canon | 1991-03-29 |
| 38 | To the Sky... | Anime Canon | 1991-04-05 |
| 39 | Successor to the Stars... | Anime Canon | 1991-04-12 |