From Zurich:
Motorway N1 to Bern, motorway N6 to Spiez, motor rail train Kandersteg/Goppenstein, in direction Sierre to Susten/Leuk then direction Leukerbad
From Geneva:
Motorway N9 till the end of the motorway in Sierre (after the tunnel), in direction Brig to Susten/Leuk then direction Leukerbad.