For nearly a century, no one in Edinburgh knew the South Bridge Vaults were there. Built in 1788 to prop up the bridge over Cowgate, abandoned by 1820, then bricked over and forgotten so completely that most Victorians walking the Royal Mile had no idea a 19-chamber underworld sat under their boots. A Mercat Tours rugby team broke back into them in the 1980s. Now you can book a ticket and walk down the same stairs.
This guide covers how booking actually works on the day, which tour to pick depending on what you want out of it, and what to wear if you don’t want to be cold for an hour underground.
- In a Hurry? Quick Picks
- What the Vaults Actually Are
- Choosing Between History Tours and Ghost Tours
- The Three Tours Worth Booking
- 1. The Original Underground Tour: around
- 2. Haunted Vaults and Graveyard Tour: around
- 3. Auld Reekie Late-Night Terror Tour: around
- If None of Those Three Fit
- How Booking Actually Works
- Which time of day to pick
- What to Wear
- Are the Vaults Actually Haunted?
- A Quick History Detour Worth Reading
- Mercat Versus Auld Reekie Versus the Cadies
- What’s Worth Doing Before Or After
- Mistakes I See People Make
- Accessibility
- What I’d Book If I Had Three Hours
- More Edinburgh Reading
In a Hurry? Quick Picks
Original daytime tour, around $32: the standard one-hour history walk under South Bridge. Best first-timer pick. Check availability.
Vaults plus Greyfriars Kirkyard, around $32: 90 minutes, doubles up the underground with the city’s most-haunted graveyard. Best value if you only do one ghost thing in Edinburgh. Check availability.
Late-night Terror Tour, around $35: the loud, jump-scare version. Goes down at 9pm or 10pm in candlelight. Not for kids. Check availability.
What the Vaults Actually Are
South Bridge looks like a 19-arch viaduct on the maps, but you wouldn’t know it walking along it. The Georgians enclosed every arch with shops and houses to make it look like a continuous Old Town street. So the bridge has 19 hollow stone arches running under the road, two storeys deep in places. Those are the vaults.
They were built as workshops and storage for the tradesmen working out of the buildings above. Cobblers, cutlers, taverners. The plan failed almost immediately. Nobody had thought to seal the bridge stone properly, and within five years the rooms were running with damp. Goods rotted. Tools rusted. By 1820 the businesses had given up and the chambers were sealed and abandoned.
What happened next is the part guides love. The chambers didn’t stay empty. Edinburgh’s poorest moved in. So did body-snatchers, illegal whisky stills, and according to the records of the era, Burke and Hare, who supplied murdered cadavers to the anatomy schools in 1828. Then the entrances got bricked up properly and people forgot. Officially the vaults sat unrecorded from around 1875 until the rugby team punched through a wall in 1985 looking for somewhere to drink. That’s not a metaphor. Mercat Tours’ founder was on that rugby team.
Choosing Between History Tours and Ghost Tours
This is the call that trips people up most. The same set of vaults runs as both a historical tour and a paranormal one, and they feel completely different.
History tours (Mercat Tours, Auld Reekie’s history tour) frame everything through what we know about Edinburgh’s poor in the 1830s, the cholera outbreaks, the trades. The guide tells you about the smell. About what the children who lived down there ate. The story stands on its own as social history. You leave knowing more about Georgian Edinburgh than you did walking in.
Ghost tours use the same chambers but lean on the paranormal frame. The most-discussed bit is the so-called “stone circle” room in the Auld Reekie set, which has a story attached about a witches’ coven that nobody can prove. Guides on the ghost side are usually theatrical. There will be a moment where the lights go off. Some people love this. Some people roll their eyes.
If you’re sceptical and want the social history, book a daytime history tour. If you’ve come to Edinburgh for the gothic and you want a story you can repeat at the pub afterwards, book the evening or late-night ghost variant. Both visit the same vaults.
The Three Tours Worth Booking
I’ve sorted these by what most people end up wanting. The standard daytime tour is the safest first booking. The graveyard combo is what I’d pick if I had to choose only one. The Terror Tour is the late-night party option.
1. The Original Underground Tour: around $32
This is the standard 60-minute history tour and the most-booked underground experience in Edinburgh by a long way. Our full review of the Original Underground Tour goes into how guides pace the chambers, but the short version is that James and the other regulars know their Old Town history cold and don’t lean on cheap scares. Good for first-timers, families with older kids, and anyone who’d rather learn than scream.
2. Haunted Vaults and Graveyard Tour: around $32
Ninety minutes, half above ground in Greyfriars Kirkyard (Mackenzie Poltergeist territory) and half below in the vaults. This is the one I’d book if I had a single evening slot. We covered Fraser as a guide in our Haunted Vaults and Graveyard write-up. The graveyard portion is where the storytelling lands hardest.
3. Auld Reekie Late-Night Terror Tour: around $35
This is the loud one. Seventy-five minutes, after dark, candle-lit only inside the vaults, and yes there’s a moment where the lights snuff. We were honest in our Terror Tour review about the jump-scare bit not working for everyone. If you’re sober and easily startled, you’ll hate it. If you’ve had two pints in the Royal Oak first, it’s brilliant.
If None of Those Three Fit
There are four useful sidesteps if the headline three are sold out or don’t suit:
- The evening ghost tour sits between the standard daytime walk and the late-night Terror version. Lower-key than the Terror Tour, scarier than the daytime one. Good middle path if you can’t decide.
- The whisky-paired ghost tour bolts a tasting onto the end. You’re paying around $33 for the experience plus three drams. Solid pre-dinner option.
- The Old Town and underground combo spends the first half walking the closes (Mary King’s Close territory) and the second half in the vaults. Picks up more historical ground than a vault-only tour.
- For something quieter, the small-group ghostly underground tour caps numbers, which matters in narrow chambers where a 25-person group becomes a queue.
How Booking Actually Works
You book a specific time slot, not a window. Tours leave on the dot because the chambers are tight and operators stagger groups so you don’t run into each other underground. Turn up ten minutes early. The Mercat check-in is on the Royal Mile near Tron Kirk. Auld Reekie’s is at 28 Blair Street, around the corner.
Tickets sell out in summer (June through August) and the week of Halloween. Fringe in August is the worst for last-minute bookings. Outside those windows you can usually walk up to the office an hour before and grab a slot. In winter it’s quieter and you can almost always book day-of online.
Most operators run on GetYourGuide and you can hold a slot with a free cancellation up to 24 hours before. That’s the move if you’re not sure about your evening yet. Lock in the slot, decide nearer the time.
Which time of day to pick
Daytime runs (11am, 1pm, 3pm typically) are calmer and the guides tend to do longer history sections. You also get to walk back out into daylight, which sounds obvious until you realise the contrast is half the point. Coming up from the vaults at 3pm into a sunny Royal Mile feels like a different city.
Evening slots (7pm, 9pm) lean ghost. The atmosphere works. Late-night Terror runs go at 10pm or 10.30pm and last around 75 minutes. If you’re staying anywhere walkable from the Royal Mile, the late slot is fine. Don’t book a late-night tour on a night you’re catching an early train the next morning, you’ll be wired.
What to Wear
The vaults sit at a steady 8 to 10 degrees Celsius year-round, which is significantly colder than outside in summer. I made the mistake of doing the Terror Tour in shorts in August. I was shivering inside ten minutes.
Wear a jumper or fleece even on a warm day. The chambers are dry, not wet, but the cold is the kind that gets into your hands. Closed-toe shoes are non-negotiable. The floor is original Georgian flagstone, uneven, and there’s grit. Sandals will leave you wincing.
One thing nobody mentions: the ceilings vary wildly. Some chambers you can stand up in. Others you’ll duck. Anyone over six foot, factor that in. You’ll be hunched for a few stretches.
Are the Vaults Actually Haunted?
Honest answer: the academic consensus is no. The “haunting” reputation came after the 1985 rediscovery, not before. There’s no Victorian record of anyone in Edinburgh thinking the South Bridge cellars were haunted, because the cellars had been forgotten about. The ghost stories are 40 years old, not 200.
That said, plenty of people do feel something. The chambers are sensory-loaded: cold air, low ceilings, complete dark when the candles go, an unfamiliar mineral smell. Brains do interesting things in conditions like that. Call that a ghost or call that a brain doing brain stuff, your choice. Either way the experience is real, even if the resident witches probably aren’t.
If you want a guide who treats this honestly, ask the booking office for one of their senior history guides. They’ll tell you straight where the line is between recorded fact (Burke and Hare really did sell cadavers to the medical school) and tour-side embellishment (the witches’ coven story).
A Quick History Detour Worth Reading
Burke and Hare aren’t a tour invention. They’re documented. Two Irish labourers who arrived in Edinburgh in 1827, ended up running a lodging house in the West Port, and over ten months killed 16 people to sell to Dr Robert Knox at the medical school for around £8 to £10 a body. The vaults connection is debated. Some sources put their cadaver storage there, some don’t, and most reputable historians are cautious about it.
What’s not debated is that the medical school’s appetite for bodies created a market. Grave-robbing was already common in the Cowgate cemeteries before Burke and Hare started killing. Greyfriars Kirkyard has the Covenanters’ Prison and several mortsafes (iron cages over graves) precisely because of this. If you do the graveyard tour, the guide will show you them.
The Burke and Hare case ended with Hare turning King’s evidence and Burke being publicly hanged in January 1829. His body was, fittingly, dissected at the medical school he’d been supplying. His skeleton is still on display there. The case directly led to the Anatomy Act of 1832, which legalised the use of unclaimed bodies for medical study and killed the body-snatching trade overnight.
Mercat Versus Auld Reekie Versus the Cadies
Three operators run the bulk of the underground tours and they each own different vault sets. This matters because what you actually see varies.
Mercat Tours own the Blair Street Vaults under South Bridge. These are the original 19 chambers I’ve been describing. Mercat lean historical, even on their ghost variant. Guides are mostly Edinburgh University history or archaeology graduates and it shows.
Auld Reekie Tours own a separate vault set, also under South Bridge but reached from a different entrance on Niddry Street. Their chambers include the disputed “wiccan stone circle” room. Auld Reekie lean theatrical and run the Terror Tour. If you’re booking purely for the spooky factor, they’re your operator.
The Cadies and Witchery Tours mainly do above-ground ghost walks (Royal Mile, Mary King’s Close adjacent), but their tour guides are the most performance-oriented of the three. Black cloaks, jump scares the cobbled street outside as much as the vaults. Worth knowing about even though they’re not strictly underground.
If a friend asks me which operator, I’d say: Mercat for daytime history, Auld Reekie for evening ghost, Cadies for street theatre. None of them are bad. They just point in different directions.
What’s Worth Doing Before Or After
The vaults are intense for an hour and most people don’t want to fill the rest of the evening with more dark stuff. A few practical recommendations:
Before: have an early dinner on Victoria Street. The Bow Bar (no relation to me, just good pub) does a solid pie and a heating fire. From there it’s a five-minute walk to either check-in.
After a daytime tour: walk up the Royal Mile to Edinburgh Castle while you’ve still got daylight. The cannon fires at 1pm so a 11am vault tour times perfectly.
After an evening tour: the Royal Oak on Infirmary Street is a 90-second walk and runs live folk music most nights. Closer to a debrief than a destination, which is what you want after a ghost tour.
Mistakes I See People Make
A few patterns crop up in feedback that are easy to avoid.
Booking the Terror Tour for a kid. The age limit is 16 for a reason. Younger kids who beg to do it usually regret it. Book the daytime instead. They’ll remember it longer anyway.
Booking back-to-back ghost tours in one night. Two ghost tours in three hours is overkill. Diminishing returns kick in fast. Pick one and do it well.
Showing up drunk for a daytime tour. The chambers are uneven and the operator can refuse you entry. Save the drinks for after.
Wearing heels. I’ve seen people try this. The cobbles outside the entrance are bad enough. The vault floor is worse. Just don’t.
Skipping the toilet beforehand. There’s nothing underground. You’re down for an hour minimum.
Accessibility
The vaults are not wheelchair accessible. The entry is via a stair down from street level, the floors are uneven, and there are tight passages. Mercat are honest about this on their booking page. If mobility is a concern, the alternative is Real Mary King’s Close, which has a partial accessibility route. It’s not the same experience but it’s the closest comparable underground attraction.
The chambers are dim but not pitch-black except during the deliberate moment-of-dark on the Terror Tour. If complete darkness is a problem, ask the guide before the tour and they’ll skip the lights-out moment for you specifically.
What I’d Book If I Had Three Hours
If I could only have three hours in Edinburgh and wanted underground content, I’d book the Haunted Vaults and Graveyard tour at 7pm, finish around 8.30, and walk down to the Royal Oak for a pint. That sequence covers the body-snatching history at Greyfriars, the actual vaults, and a debrief, all in the right order.
If I had a kid along, swap to the standard daytime tour and stop at the National Museum on Chambers Street afterwards. Same neighbourhood, very different vibe.
More Edinburgh Reading
Once you’ve sorted the underground, the rest of the city slots in around it. Edinburgh Castle is the obvious pairing for a daytime tour, and the Harry Potter walking tour covers Victoria Street and Greyfriars Kirkyard from a totally different angle (Tom Riddell’s grave is in the same kirkyard the vaults guides walk through). For a low-stress evening that’s still atmospheric without the scares, the Scotch Whisky Experience next to the castle is the soft option. And if you’ve already done all the Edinburgh underground and you’re heading south, our London Jack the Ripper walk is the closest English cousin to what Auld Reekie do up here.