Υ1 – Στη σιωπή του βυθού
- Bliadhna: 2020
- Dùthaich: Greece
- Seòrsa: Documentary, History
- Stiùidio: EPT, 2|35, FAOS
- Faclan-luirg: sea, navy, submarine, world war ii, greece, exploration, sunken submarine, british navy, ship wreck, german occupation of greece, katsonis, greek navy
- Stiùiriche: Filippos Vardakas
- Cast: Bilio Tsoucala
