After four years of planning, several delayed votes and nearly a year of debate, tweaking and tinkering, the Sioux Falls City ...

Even as the mercury dropped well below freezing, enthusiasm soared among about a dozen hardy swimmers during a daily ritual ...

This is a collection of photos chosen by AP photo editors.

In air temperatures of -13 degrees Celsius (8.6 degrees Fahrenheit), swimmers carved a pool out of the icy waters of the ...