Miscellaneoux:
Tourist information office of Sion
Sierre/Anniviers Tourist information office
Accommodation:
The HES-SO Valais-Wallis has no residential campus. Exchange students are expected to book their accommodation themselves. Prices range from CHF 500 to CHF 600/month. You can find offers on the following websites:
HES-SO Valais-Wallis (ads for accommodation in Sion and Sierre submitted by students)
Ads for accommodation: Immoscout Students.ch