S
- Saint Lawrence River. (62)
- South Africa--Pietersburg. (1)
- South Carolina--Aiken. (13)
- South Carolina--Ashley River. (5)
- South Carolina--Charleston. (161)
- South Carolina--Isle of Palms. (5)
- South Carolina--Otranto. (2)
- South Carolina--Summerville. (12)
- South Dakota--Brookings. (3)
- South Dakota--Deadwood. (1)
- South Dakota--Hot Springs. (4)
- South Dakota--Minnesota River Valley. (1)
- South Dakota--Sylvan Lake. (1)
- Spain--Granada. (1)
- Superior, Lake. (46)
- Susquehanna River. (30)
- Sweden. (1)
- Switzerland--Alps. (1)
- Switzerland--Bern. (1)
- Switzerland--Geneva, Lake. (1)
- Switzerland--Matterhorn. (1)