This video may be a more informative resource: https://youtu.be/8BoGrRx9R2g

It covers some of the history of the Chilly Open, has interviews with participants, etc

That's a very entertaining video. Looks like they are doing a mini-putt with tennis balls and hockey sticks. It looks like fun, especially with all of the quirky competitions and dress up. When we play we tend to do more of a "full golf" with regular balls and clubs over long distances. However we have tried tennis balls when it was so snowy that we were losing balls.

Have you played there?

Do you have more info?

Is this the official webpage? https://chillyopen.wayzatachamber.com/