SHERIDAN — The annual test of willpower known as the Polar Bear Plunge is set for Friday at 1 p.m.

All willing to jump into Lake DeSmet, or watch others do so, are welcome.

Approximately 75 people participated last year.

Organizers recommend bringing some warm clothes for after the plunge.

The event will take place at the south boat ramp at Lake DeSmet off of exit 51 on Interstate 90.

For additional information, contact Rob Forister at 751-9465.