Geneva to Brno - Best route through Switzerland & Austria

[Paul.B]

Hi all - We are planing a Driving Holiday to Auschwitz in May/June and plan to include driving through Switzerland & Austria on the outward leg. (Returning via Germany/Holland) One of our overnight stops will be just outside Geneva at Bourg-En-Bresse and then plan to drive right through to Brno in Czech Republic and on to Auschwitz.

Any suggestions on which basic route to take? We want the best driving route, not most efficient!!! We will be avoiding Motorways and happy to take detours to drive some passes. Also, places to stay. On a budget so bringing tents along and happy with F1/Ibis Budget type places.

Thanks for any advice

Paul