Discover the unique RÉSO district of Montreal, an extraordinary city beneath the city, on this 2.5-hour walking tour with an expert private guide. RESO is the largest underground network of offices, malls, hotels, restaurants, pop-ups, conference centres, and other venues like performing arts spaces and even schools and universities, as well as the Metro, that make up a subterranean "city" anywhere in the world.

On this impressive 2.5-hour tour, you'll be able to fully explore Montreal's Underground City - and end back at the legendary Sainte-Catherine street.