In short
- Visit from December to March to escape freezing temperatures.
- Weekdays and Saturdays offer maximum store hours.
- Sundays see earlier closures across connected malls.
In this article
Spanning 32 kilometers (20 miles) under downtown Montreal, RÉSO connects over 1,600 retail stores, 200 restaurants, and 12 metro stations. Since it links dozens of independent buildings, the hours depend entirely on the time of day and the season you visit. Here is how to time your trip perfectly.
When is the best time of year to visit?
Winter (December to March) is the best time to visit the Montreal Underground City.
During the harsh Canadian winter, temperatures frequently drop well below freezing. The climate-controlled network becomes a vital urban district, used by roughly 500,000 people daily. It allows you to shop, eat, and transit across 12 square kilometers of downtown without stepping outside.
What days of the week are best for shopping?
Visit from Monday to Saturday to experience the network at its liveliest.
Because the Underground City connects major downtown malls like Eaton Centre and Place Montréal Trust, retail hours dictate the energy of the network. Stores are fully open on weekdays and Saturdays. On Sundays, retail shops close earlier, usually around 5:00 PM, and some food halls may have limited hours.
What time of day is best for exploring?
Mid-morning to early afternoon is the ideal time to explore.
Arriving around 10:00 AM ensures that all retail stores, food halls like Time Out Market, and public plazas are open. If you want to avoid the heaviest foot traffic, skip the weekday lunch rush (12:00 PM to 1:30 PM), when office workers flood the food courts.
Is the Underground City open at night?
The corridors remain open until the Metro stops running, but retail and dining close much earlier.
While you can walk through the pedestrian tunnels until about 1:00 AM to access the STM Metro (Green or Orange lines), the network is largely empty at night. Stores close by early evening. It is generally safe, but there is little to see or do after hours. Do not enter restricted or staff-only areas when public sections close.
Does the season affect guided tours?
Guided tours run year-round, but demand surges in winter.
If you visit between December and March, book tours in advance. A guided walking tour (taking 2 to 2.5 hours) is highly recommended for first-timers to understand the layout and history without getting lost. Summer tours are less crowded and often feature a mix of indoor and outdoor downtown exploration.
Can I visit on holidays?
Access corridors are usually open, but store hours will vary widely.
On major holidays, the tunnels linking the 12 metro and 2 railway stations remain open for transit. However, the 1,600 retail stores and 200 restaurants operate on holiday schedules. Check individual mall hours (like Complexe Desjardins or Promenades Cathédrale) before planning a holiday shopping trip.
Questions travellers ask
What time does the Montreal Underground City open?
There is no single opening time. The pedestrian corridors open when the connecting STM Metro stations open, generally around 5:30 AM. However, the retail stores and food halls usually do not open until 10:00 AM.
How long does it take to see the Underground City?
You should plan for 2 to 3 hours. This allows time to walk between major hubs like McGill and Bonaventure, stop for a meal, and view the public art. Guided tours typically take 2 to 2.5 hours.
Is the Underground City crowded?
Yes, especially during winter weekdays. Approximately 500,000 people use the RÉSO daily. The busiest times are weekday lunch hours and evening rush hours when office commuters and shoppers mix.
