72625 posts
hi Jinny and welcome to MySwissAlps!
The Zurich day pass can cover the Rheinfall if you buy the all zone pass at 34CHF but not the other locations (almost!). Schloss Laufen Am Rhein train stop near the Rheinfall is in zone 116 on the ZVV zone map.
Where will you be starting your journey? It is probably cheaper to buy point to point tickets with SBB (Swiss railway) if you are starting in downtown Zurich.
Use our timetable here to enter your journey (to and from and dates) to see the costs for individual tickets. To get prices you will need to enter your name and birth date and then select any fare reduction you may have (if you have a half-fare card for example).
I hope that helps, let me know if you have further questions. Check out our information page on Zurich for more details as well.
Lucas
72625 posts
Thanks for your helpful response