Budai Castle Tunnel

The Budai Castle Tunnel is a fascinating underground passage system stretching over 10 kilometers beneath Buda Castle Hill. Originally built in the 19th century for military and storage purposes, the tunnels now serve as a unique tourist attraction. Visitors can explore a section of the labyrinth on guided tours, learning about its use as a bomb shelter during WWII and its role in the 1956 Hungarian Revolution. The tunnels are dimly lit and maintain a constant cool temperature, providing a refreshing break from summer heat. Highlights include a wine cellar, a chapel, and exhibits on the castle's history. The tour is atmospheric and educational, with some areas still showing original stonework and graffiti from past eras.

Don't miss

• Walk through a 10+ km labyrinth of tunnels beneath the castle
• See a medieval wine cellar carved into the rock
• Visit the underground chapel used by soldiers
• View original graffiti and inscriptions from past centuries
• Learn about the tunnel's role in WWII and the 1956 uprising

Tickets & tours

Ways to visit Budai Castle Tunnel

Cheapest way inBudapest Castle District Walking Tour4.9★ · 657 travelers~2 hoursFree cancellationFrom$3 per personSee dates →Most bookedBuda Castle District Dark History, Legends and Vampire Night Tour4.6★ · 1,383 travelers~2 hoursFree cancellationFrom$23 per personSee dates →Private & flexiblePrivate Tour to Buda Castle District and Budapest Center5★ · 16 travelers~3 hoursFree cancellationFrom$58 per personSee dates →

Getting there

Know before you go

• Guided tours are the only way to access most sections; book ahead.
• Wear comfortable walking shoes; floors can be damp.
• Bring a light jacket; tunnels are around 15°C (59°F) year-round.
• Photography allowed, but flash may disturb other visitors.

A bit of history

Construction began in the 1850s to connect the castle to the Danube. Expanded during WWII as a bomb shelter, it later housed Soviet troops. The tunnels were opened to the public in the 1990s.