Go inside the Wauwatosa Curling Club.
The parking lot is crowded outside the Hart Park Community Center in Wauwatosa.
It's curling season. And it's a Tosa tradition.
"This building was built specifically for curling in 1941," said Erich Gross, pointing to the club's wall of framed black and white photos of past presidents.
Wisconsin is home to some big time curling — the Badger state has more organized curling clubs than any other state in the nation.
And it's more than drinking beer and throwing rocks down the ice — though Gross will tell you that's a big part of it. A lot of strategy goes into each throw. After all, curling is sometimes called "chess on ice," and it has been an official Olympic sport since 1998.
"Everyone has something to do for every rock. If the team isn’t playing right, you’re not going to be successful," said Greg Toucette, a 41 year curling veteran.
If you don't know much about curling, that's okay, too. The Wauwatosa Curling Club has groups for all ages and levels.
Leagues form in October and January. Membership is around $300 a year (including beer). You can find out more here.