Hofstrasse 39, 6300 Zug
Public transport:
S2 train Zug Bahnhof to Zug Fridbach
Bus 14 from Zug Metalli to Zug Roost
Look for:
Plain orange buildings on your left hand side (if old town is behind you), walk zigzag path up to nr 39, along the mailboxes and long green slide.