Υ1 – Στη σιωπή του βυθού
- Година: 2020
- Земја: Greece
- Genанр: Documentary, History
- Студио: EPT, 2|35, FAOS
- Клучен збор: sea, navy, submarine, world war ii, greece, exploration, sunken submarine, british navy, ship wreck, german occupation of greece, katsonis, greek navy
- Директор: Filippos Vardakas
- Улоги: Bilio Tsoucala
