The Riddle of the Sands
- Blwyddyn: 1979
- Gwlad: United Kingdom
- Genre: Action, Drama
- Stiwdio: The Rank Organisation
- Allweddair: germany, yacht, north sea
- Cyfarwyddwr: Tony Maylam
- Cast: Simon MacCorkindale, Michael York, Jenny Agutter, Alan Badel, Jürgen Andersen, Michael Sheard