This incredible underground world can be found on the Union Canal, right next to Falkirk High train station. It's a tunnel with a special atmosphere thanks to the lighting, the cave-like structure and a fascinating history that includes Burke and Hare.
If you cycle around 25 miles along the Union Canal from Edinburgh you will arrive at the Falkirk Tunnel. Or you can take a train to Falkirk High and from the south platform it is just a five minute walk.
What's it like to visit?
This is so much more than just a tunnel. It feels like a cave with the rough natural stone interior that was blasted out by navvies around 200 years ago. There is a hint of Bond villain lair- you can almost imagine patrol boats with armed guards cruising by. The walls glisten with trickling water and a hole in the roof has a continuous stream pouring through it.
The canal was meant to be an overland route, but the owner of Callendar House, William Forbes, said it would ruin his view so successfully campaigned to have it diverted under Prospect Hill. Construction of the tunnel took place between 1818 and 1822.
It is 630 meters long and can be a challenge to cycle through as the towpath is cobbled, slippery, has puddles and is only 5 feet wide. Pushing your bike through it can give you more time to appreciate the unique environment of the tunnel.
When the tunnel first opened there was such a thing as passenger canal boats. Some people were afraid to travel through the tunnel so horse transport was provided so that they could get off the boat and meet it at the other end.
I can understand why they did not want to go through the tunnel. Moving from daylight and pleasant countryside into a dark cave-like structure is disconcerting. Although the lighting is much improved today it still feels dark and the roof is low. Plus there is a spooky association with Burke and Hare, the murderers who stalked people in early-1800s Edinburgh, killed them and sold them to the anatomy school. The two men had moved from Ireland to Scotland to work on the canal and the construction of the tunnel.
The tunnel really is worth a visit. I just loved the stark contrast between the bright and bucolic surroundings at the mouth of the tunnel and the mysterious, dark world that you step into. It's not one of Scotland's most obvious attractions, but you will not be disappointed if you put this on your itinerary.