... by car:

from Germany on the A5 until exit
Weil am Rhein or the A 81 and various federal highways.
From Switzerland on the N 3 to the Basel toll and then the A 5 until exit Weil am Rhein. From France via Mulhouse (A36)

... by train:

with IC / EC and ICE connections directly to Basel (Bad train station) and from there in a few minutes with regional trains to Weil am Rhein. From the main train station in Weil am Rhein you can take the bus lines 16 (direction Brombach Tafelladen, Lörrach) and 55 (direction bus station Kandern) to the stop Turmstraße (3 stops).

... by plane:

via Airport Basel-Mulhouse