45 Tymor
165 Pennod
National Geographic Specials - Season 16 Episode 1
1 hour-long TV special about deep sea exploration of the Galapagos Rift (1980).
- Blwyddyn: 2010
- Gwlad:
- Genre: Documentary
- Stiwdio:
- Allweddair:
- Cyfarwyddwr:
- Cast: