Jun 19, 2015 - 12:11 PM
Welcome to MySwissAlps, Ana2000!
A 4 day Tell Pass is a good choice if you focus on the Lucerne area. You can best buy additional regular tickets from Zurich to Baar (that's indeed where the Tell Pass validity starts; please refer to the Tell Pass validity overview) and from Lucerne to Geneva. That will be cheaper than a Swiss Transfer Ticket. By the way, if you don't have to rush when traveling to Geneva, you may consider to use the Golden Pass route via Interlaken, Spiez and Gstaad. It's more expensive than the regular route via Olten and Bern, but it's a beautiful ride.
You can buy your Tell Pass either online in advance or in Zurich. Purchase options are explained here.
Have a wonderful stay in Lucerne!