
Montreal RESO Underground City + Downtown Tour by MTL Detours
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September 2026
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Who is going?
Adults
Age 13 and over
Children
Age 12 and under
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Free cancellation up to 24 hours before. Same price on Viator, Outty earns a commission.
Traveler rating
4.8/5
Based on 316 traveler reviews. Ratings and reviews provided by Viator and Tripadvisor.
Quick answer
Is Montreal RESO Underground City + Downtown Tour by MTL Detours worth booking?
Montreal RESO Underground City + Downtown Tour by MTL Detours is a 2-hour experience in Montreal, Canada, from $49 per person. It scores 79 out of 100 on the Outty Ranking, which we label “Strongly Recommended”, based on a 4.8/5 rating across 316 reviews. Cancellation is free up to 24 hours before the start time. Same-day spots are currently showing.
- Outty Ranking
- 79 / 100
- Rating
- 4.8/5 (316)
- Duration
- 2 hours
- From
- $49 per person
Minimum age to attend is 12 years old. All participants require a paid ticket. This is an exclusive small-group tour with a maximum of only 10 people. MTL Detours, founded in Montreal, is a 100% locally owned + operated
What you get
- Guided walk through the RÉSO, the world’s largest underground pedestrian network
- The MTL Detours printed local recommendations list: favourite spots to eat, drink, and explore
- Certified, licensed guide with the mandatory City of Montréal permit (not just a “local”)
- Balanced indoor and outdoor route exploring both Downtown streets and the RÉSO network
- Minimum age is 12+ years old. Minors must be accompanied by an adult.
- Small group (maximum 10 guests) for a personal, conversational experience
About this experience
Minimum age to attend is 12 years old. All participants require a paid ticket. This is an exclusive small-group tour with a maximum of only 10 people. MTL Detours, founded in Montreal, is a 100% locally owned + operated small independent tour company.
What's included
Included
- Guided walk through the RÉSO, the world’s largest underground pedestrian network
- The MTL Detours printed local recommendations list: favourite spots to eat, drink, and explore
- Certified, licensed guide with the mandatory City of Montréal permit (not just a “local”)
- Balanced indoor and outdoor route exploring both Downtown streets and the RÉSO network
- Minimum age is 12+ years old. Minors must be accompanied by an adult.
- Small group (maximum 10 guests) for a personal, conversational experience
- MTL Detours is a 100% local, independent, and proudly woman-owned tour company.
- Exploration of key Downtown Montréal landmarks and ares, at street level
Not included
- Gratuities. Optional, but always appreciated by your guide.
- Hotel pick up + drop off. Guests must make their own way to out meeting location.
What you'll see and do
Centre-Ville (Downtown)
Exploration of key Downtown Montréal landmarks and areas outdoors, at street level.
Pass by without stopping
The Underground City
Explore key tunnels, architecture, and samples of public art in Montréal’s RESO Underground City.
Pass by without stopping
Where it starts and ends
Meeting point
Montreal
Meet at address 1204 McGill College Avenue. Your guide will greet you on the sidewalk. Arrive 10-15 minutes in advance and note that we do not wait for latecomers.
Hotel pickup
No pickup: everyone meets at the start point.
Ends at
Tour ends at World Trade Center/Centre de commerce mondial de Montreal
Options you can book
Private Tour (EN or FR)
Available in English or French
English Tour | Ages 12+
Small-Group Tour: Ages 12+. All participants require a paid ticket. Minimum age to attend is 12
Before you book
- Cancellation
- For a full refund, cancel at least 24 hours before the scheduled departure time.
- Languages
- en
- Ticket
- Mobile Only
- Runs on
- Every day
- Group size
- Up to 5 travelers per booking
- Operated by
- MTL Detours
Know before you go
- Public transportation options are available nearby
- Travelers should have at least a moderate level of physical fitness
- Minimum age to attend is 12 years old. All participants require a paid ticket.
- Tour is both indoors and outdoors. Please dress appropriately for the outdoor weather conditions.
- This 2-hour tour covers approx. 4 km (2.5 mi) at a steady city-walking pace and includes several sets of stairs and/or escalators
- Not suitable for guests with a slow walking pace, mobility issues, impairments or serious medical conditions.
- MTL Detours is a 100% local, independent, and proudly woman-owned tour company.
Photos






Good to know
- Duration
- 2 hours
- Free cancellation
- Up to 24h before
- Minimum age to book
- 12+
- Availability
- Bookable today
- Runs on
- Every day
- Hotel pickup
- No pickup, meet at start point
- Booked in 30 days
- 111
- Verdict
- Strongly Recommended
Why this scores 79
The Outty Ranking is a weighted composite. Here is how this experience performed on each component.
Montreal RESO Underground City + Downtown Tour by MTL Detours: questions travelers ask
Practical detail on this experience, plus the wider planning questions for Montreal.
How much does Montreal RESO Underground City + Downtown Tour by MTL Detours cost?
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Prices start at $49 per person. The final price depends on the date, the time slot and the number of travelers, and peak weekends in Montreal usually price higher than midweek mornings. Live pricing and remaining availability are confirmed on the booking screen before you pay.
How long does Montreal RESO Underground City + Downtown Tour by MTL Detours take?
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Plan for about 2 hours from start to finish, not counting travel to the meeting point. Most travelers leave another 30 minutes on either side so the rest of the day in Montreal is not rushed.
Is Montreal RESO Underground City + Downtown Tour by MTL Detours worth it?
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It holds an Outty Ranking of 79 out of 100, which we label "Strongly Recommended". That score blends traveler sentiment (4.8/5 across 316 reviews), the depth of that review evidence, recent booking momentum, value for money against comparable most highly reviewed in Montreal, and how flexible the cancellation terms are.
Can I cancel or reschedule Montreal RESO Underground City + Downtown Tour by MTL Detours?
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Yes. Cancel free up to 24 hours before the start time for a full refund. Inside that window the booking is non-refundable, and no-shows are not refunded.
Is Montreal RESO Underground City + Downtown Tour by MTL Detours suitable for kids and families?
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The operator sets a minimum age of 12. Older children generally do well here, and families should factor in the 2-hour running time when deciding.
How far in advance should I book Montreal RESO Underground City + Downtown Tour by MTL Detours?
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Around 111 people booked this in the last 30 days, so popular slots go early. Two to three weeks ahead is comfortable in shoulder season, while summer weekends and holidays in Montreal can sell out a month out. Same-day spots do open up when other travelers cancel, so it is worth checking if you are already in town.
What should I bring or wear?
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Bring photo ID, your booking confirmation on your phone, a refillable water bottle and comfortable shoes. Dress for the weather in Montreal and add a light layer if any part of the 2-hour experience runs outdoors or after sunset.
Where does Montreal RESO Underground City + Downtown Tour by MTL Detours start and how do I get there?
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The exact meeting point and directions are on your voucher once you book, and they sit in central Montreal within reach of public transport. Arrive 15 minutes early: late arrivals are treated as no-shows by most operators.
What are the best things to do in Montreal?
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On Outty we rank every Montreal experience on the same 0 to 100 scale, and alongside this one the highest scorers right now include The Essential 101 Non-Touristy Walking Tour by Spade & Palacio, Old Montreal Walking Tour | Small Group (Max 10) | by MTL Detours, The Full-Day small-group comprehensive tour of Montreal. The city page groups everything into most popular, highest reviewed, last minute and family-friendly so you can build a day around what actually delivers.
When is the best time to visit Montreal?
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Booking patterns follow the same curve: prices and queues climb in peak weeks, while shoulder season gives you better availability on the top-ranked experiences and more room to change plans.
How many days do you need in Montreal?
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Three full days covers the headline sights without sprinting. A workable rhythm is one anchor experience each morning, such as this one, an unhurried afternoon in a single neighborhood, then a food or nightlife booking in the evening. Five days lets you add a day trip outside the city.
Do I book through Outty or through the operator?
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Outty ranks and explains the experiences, then hands you to Viator to complete the booking with the operator directly. The price is the same as booking on Viator yourself, and Outty earns an affiliate commission on the referral, which is how the rankings stay free to read.
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