For information, go to the Verkehrsamt, Maximilianstrasse 13 (tel. 06232/142392; www.speyer.de). It's open November to March Monday to Friday 9am to 5pm, and Saturday 10am to noon; and April to October Monday to Friday 9am to 5pm, Saturday 10am to 3pm, and Sunday 10am to 2pm.
Walking city tours in English and other languages are available from April 1 to November 30, regularly on Saturday and Sunday. The walking tour costs 3.60€ per person. The tour leaves at 11am at the tourist information office.