Congress venue is in the HOTEL SEMPACHERSEE situated in Nottwil - Switzerland.
Kantonsstrasse 46, Nottwil
LU 6207, Switzerland
Hotel Sempachersee is located within the Campus of the Swiss Paraplegic Center and is therefore perfectly accessible.
If you plan to stay a few more days in the region of Luzern please go to the website of Luzern Tourism https://www.luzern.com/en/ or the Switzerland Tourism: https://www.myswitzerland.com/en-ch/ for ideas what you can do.