Access
a) from Vitznau: train
b) from Weggis: gondola, then change to train
c) from Arth-Goldau: train
>> www.rigi.ch/Travel-Information/Getting-there
Rules
Airspaces in Switzerland are a tough subject, get all the info you can get before flying: http://www.flyland.ch.
DABS (active danger areas etc): https://www.skybriefing.com/portal/