The Sion Tourist Information Office is on place de la Planta (tel. 027/327-77-27; www.siontourism.ch). It's open mid-July to mid-August Monday to Friday 8:30am to 6pm, Saturday 10am to 4pm, Sunday 9am to noon; off season, hours are Monday to Friday 8:30am to noon and 2 to 5:30pm, Saturday 9am to noon.
Note: This information was accurate when it was published, but can change without notice. Please be sure to confirm all rates and details directly with the companies in question before planning your trip.