Hi jgrossi
Young people aged 6 to under 16 travel at half price in Switzerland anyway, so they don’t need a Half-Fare Card. For the adults I would advice the Swiss Travel System Half-travelcard for CHF 120.00.
Besides that, we have special rates for group single journeys.
If at least 10 people travel together and reserve a seat, we offer a group ticket with an additional 30% discount.
All the infos you need are here: Group tickets. Please read it carefully and if you still have questions and wants to be advised individually about a particular route, please call our Contact Center 0041 848 44 66 88 (CHF 0.08/Min). When calling from abroad, if this number doesn’t work, please try 0041 51 225 78 00.
Have a nice day. EllenvS.