Hello
There is an exceptional rowing club in Zug - one of the world's oldest and most famous, in fact. If you walk round the north side of Zugersee from the centre of Zug, you will come to a marina area with lots of sailing boats etc. The rowing club is in a modern looking building just there. It is known as See-Club Zug, on the web at http://scz.ch. I'm an ex-UK international rower and I do know that the club is quite an exclusive club. I move to Zug in July and will be knocking on their door soon after I arrive.
Good luck