Υ1 – Στη σιωπή του βυθού
- annos singulos: 2020
- Patriam: Greece
- genus: Documentary, History
- Studio: EPT, 2|35, FAOS
- keyword: sea, navy, submarine, world war ii, greece, exploration, sunken submarine, british navy, ship wreck, german occupation of greece, katsonis, greek navy
- Director: Filippos Vardakas
- cast: Bilio Tsoucala
