Cao Cao's Underground Military Tunnel
曹操运兵道（亳州古地道）
An ancient network of military tunnels beneath Bozhou's old town, with cat-ear niches, barrier arches, and traps for defence.
The Bozhou ancient tunnels are said to have been dug by Cao Cao's troops. They run in a network beneath the old town, with about 8,000 metres mapped so far. They are a National Key Cultural Relic Protection Unit. The tunnels take several forms, including single-lane passages, parallel double tunnels, and two-level passages. Military features include cat-ear niches, barrier arches, trip boards, pitfall traps, and speaking holes. About 600 metres are open to visitors. Tickets cost about 50 yuan. Opening hours are 08:00 to 17:30, with the last entry at 16:30. The tunnels are low and narrow, so taller visitors should watch their heads, and those who are prone to claustrophobia should think carefully before going in.
Opening hours
08:00–17:30 (last entry 16:30)