Not Switzerland, as difficult to find exchanges that trade the CHF-BTC pair. I have not found any CHF Bitcoin exchange inside Swizterland yet for normal people, look like there isa CHF to BTC gateway for high wealth individuals and financial traders Dukascopy Bank. 

So you have to trade your CHF into EUR or USD which is admin heavy and costs you more for your CHF-BTC round trip fees costs. There is good network of BTC ATMs though although watch out as the CHF-BTC spread  is very high, looks like circa 7%.