Your walking tour will be led by an expert guide who will provide fascinating historical information and fun facts. You'll descend into the tunnels below Houston’s largest business district that features some of the city’s most celebrated skyscrapers. Houston has the most extensive downtown tunnel system in the United States, so you’ll have the chance to discover a wealth of historical and artistic charms! This fully-immersive walking tour is a healthy, fun, and fascinating way to discover the charms of Houston. It is designed for locals and tourists alike, and features sights that even the locals don't know about. • Year round, Monday, Wednesday and Friday - 1:30 PM • All ages welcome • This experience is not recommended for people with limited mobility ** This product is an e-Voucher that will be sent to the email address of your choosing. The e-Voucher does not expire until used.**