Υ1 – Στη σιωπή του βυθού
- Jaar: 2020
- Land: Greece
- Genre: Documentary, History
- Studio: EPT, 2|35, FAOS
- Sleutelwoord: sea, navy, submarine, world war ii, greece, exploration, sunken submarine, british navy, ship wreck, german occupation of greece, katsonis, greek navy
- Direkteur: Filippos Vardakas
- Gooi: Bilio Tsoucala
