- Saint-Exupéry, A. de 1
- Samal 1, 2, 3, 4
- Sama sellang (King of the fishes) 1
- Sarah Ann Is. 1
- Savage, V. R. 1 n
- Scapa Flow 1
-
- Schlee, Susan 1, 2 n
- Schliemann, H. 1
- science fiction 1, 2, 3
- Scorpion, USS 1, 2
- Scott, Capt. Robert Falcon 1
- Scott, Sir Walter 1
- Scripps Institute of Oceanography 1 n, 2
- scuba gear 1, 2, 3
- ‘Sealand’ 1 n
- sea lions 1
- seals 1, 2
- seasickness 1
- sea whips 1
- Selkirk, Alexander 1
- sensory deprivation 1
- Shakespeare, W. 1
- sharks 1, 2, 3, 4, 5, 6, 7, 8
- Sharp, Bartholomew 1
- sheep, as fuel 1
- Shelford, W. O. 1
- Shroud of Turin 1
- Soloviev, S. L. 1
- Somerville, Boyle 1, 2, 3, 4
- sonar 1, 2, 3, 4, 5, 6, 7
- sounding 1, 2, 3, 4
- souvenirs 1
- Soviet Academy of Sciences 1
- Soviet Atlas of the Pacific Ocean 1
- space 1, 2, 3
- space motion sickness (SMS) 1 n
- spear gun 1, 2, 3, 4
- Spilsbury, Bernard 1 n
- St. Brandan Is. 1, 2, 3
- Stevens, Wallace 1 n
- Stewart, USS 1
- St Francis of Assisi (body odour of) 1 n
- Stokes, William (death and burial of) 1
- Stommel, H. 1 n
- ‘streamer’ (hydrophone) 1
- Suez Canal 1
- superstitions 1, 2
- Swain’s Is. 1
- swim, fishermen’s inability to 1
- Swiss Family Robinson, The 1