Place
- Plymoth (Mass.)1
- Plymouth Bay (Mass.)1
- Point Lobos State Reserve (Calif.)1
- Saint Helena1
- Saint Vincent and the Grenadines1
- Sakonnet River (R.I.)1
- Santa Maria River (Calif.)1
- Saudi Arabia1
- Senegal1
- Sequit Point (Calif.)1
- Solano County (Calif.)1
- South Africa1
- Sri Lanka1
- State of California1
- Stellwagen Bank National Marine Sanctuary (Mass.)1
- Taunton River (Mass.)1
- Ten Mile River (Mass.)1
- Togo1
- U.S. Virgin Islands1
- Uruguay1