That will depend on the tour provider. You’ll find that hop-on hop-off bus tours can be either live or audio-guided. Many will have a pre-recorded commentary that’ll share fascinating information about the history of San Antonio, its culture, and many places of interest. You’ll find that the audio commentary will be provided in various languages. English, French, German and Spanish are the most commonly used, but others may be available. Check the specific product page for full details of all the languages offered.