Airspaces in Switzerland are a tough subject, get all the info you can get before flying: More info on http://www.flyland.ch.
DABS (active danger areas etc): https://www.skybriefing.com/portal/
Access
Cablecar from 'Murschetg'. Coming from 'Chur', pass 'Flims' and follow the signs...
> https://www.laax.com/en/service/aktuelltickets
Rules
observe wildlife protection areas (several!!)