Onion festival in Bern and hiking around Thun Lake

Hello!
Is there going to be any Internations event related to the Onion festival on November 23rd? As I have a day off, I'll have a hop there from Milano for a long weekend and was wondering about it.

Besides wondering, I was also considering... wandering around Thun Lake. More specifically, doing the
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( or Protected content ) hike either on Saturday or Sunday, and the
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If the weather is kind, would anyone be interested in joining in a walk across the natural parks of Suldtal and Hohgant?

Cheers from Milano,
Andy