Stand on the Promenade René-Lévesque and the Saint Lawrence River is right there, with Montreal's skyline filling the far bank. Longueuil spreads out behind you as a mostly residential, commercial and industrial suburb on the south shore, and much of it is quiet streets of post-war single-family homes. That is the appeal: you are close to a big city without being in one.
This guide suits travellers who have already done Montreal and want a slower day across the river, or who are staying in Longueuil and want to know what is actually worth their time. It covers the historic core of Old Longueuil, the city's larger nature parks, the riverfront, and a handful of cultural venues and annual events.
Everything below is drawn from the Wikivoyage listings for the city. Where a place needs a reservation or a phone call, that is noted, because several of these do.
Top things to do in Longueuil
1. Co-Cathedral of Saint-Antoine-de-Padoue
This is the anchor of Old Longueuil, at the corner of rue Saint-Charles and chemin de Chambly. Built between 1885 and 1887 in new-Gothic style, it is worth the time for its polychrome decoration, a stained-glass topped cupola on a metallic armature, and a quincunx crossing plan with wide corner chapels. There is a small museum in the basement.
It is open daily from 08:30 to 17:15, so it fits easily into a morning. Pair it with a walk along rue Saint-Charles in the same sector, since you are already there.
2. Parc Michel-Chartrand
The largest of the city's nature parks, at 1895 rue Adoncour, and the one with the most to fill a half day. You will find a 5-km jogging loop, nearly 20 km of bike paths and hiking trails, three artificial lakes, a marsh developed for nature observation, a sundial, two petanque courts, picnic tables, community gardens and the La Riveraine trail of the Route verte. Deer and ducks are common, particularly around the pond in summer.
The reception pavilion has a snack bar, sanitary and first aid services and an equipment rental shop, so you can travel light. It is open year round and free, and in winter the trails become cross-country skiing routes.
3. Parc de la Cité
In Saint-Hubert at 6201 boulevard Davis, this nature park centres on the Lac de la Cité, an artificial lake divided into three areas, with a pedestrian and bicycle path around it running 8 km to the Raymond-Lévesque library. There is also an artificial hill, peat bog areas, wooded sections and open grass, plus a children's playground with water jets and training circuits around the lake.
It is free, with free parking and a reception pavilion with sanitary and first aid services, the Cité café and a sports equipment rental shop. A herd of about sixty geese lives here from April to October. The park hosts large events, including the Quebec National Day festivities.
4. Parc Marie-Victorin
At 81 chemin de la Rive, this park follows the south shore of the Saint Lawrence River and gives you the views across to Montreal. There are several kilometres of bike path and walking trails, a picnic area and a children's play area.
It is free, and the riverside setting makes it the natural companion to the municipal beach and the Promenade René-Lévesque landing stage. Come for the late afternoon light on the water.
5. Longueuil municipal beach
On Île Charron at 2495 rue de l'Île Charron, reached by taking Highway 20 and the Île Charron exit. In summer a ferry runs between the beach and the landing stage along the river at Promenade René-Lévesque, near the Hyppolite-Lafontaine bridge-tunnel.
An elevated walkway lets you cross Route 132 and the access ramp to Highway 20 West, which solves the awkward approach. It is free. Go in summer, when the ferry is running, and combine it with Parc Marie-Victorin on the same outing.
6. Réserve naturelle du Boisé-Du Tremblay
A 260-hectare wildlife reserve sitting partly in Le Vieux-Longueuil and partly in Boucherville, between chemin du Tremblay and chemin de la Savane, and between boulevard Montarville and boulevard Béliveau. It is home to Western Chorus Frogs, a rare amphibian, and has a hiking trail.
It is free. This is a quieter, more focused walk than the city parks, so bring what you need and treat it as a nature stop rather than a full afternoon.
7. Maison Daniel-Poirier
At 255 rue Saint-Charles Est, this stone house was built in 1750 and is the only house in Vieux-Longueuil built under the French regime to have retained its original appearance. For anyone interested in what this street looked like before the suburb grew around it, it is the clearest surviving example.
Visits are by appointment only, so call ahead to reserve. It sits on the same street as the co-cathedral, which makes it easy to fold into a walk through Old Longueuil.
8. Museum of Women
A small museum at 2380 boulevard Roland-Therrien, in a 1950s bungalow, opened in 2008. Its purpose is to raise public awareness about the contribution of women to the development of Quebec and Canada.
All visits are by reservation, and you need to call at least 48 hours in advance. Plan it into your schedule before you arrive rather than turning up.
9. Théâtre de la Ville
At 150 rue De Gentilly Est, this is the city's main performing arts venue, with two performance halls, two rehearsal studios, two foyers and a private lounge. It has given many actors and directors room to work in the performing arts.
Check the programme and book through the ticket office before your trip, since a performance is the reason to go. It pairs well with an evening in Old Longueuil.
10. Exhibitions at the Marcel-Robidas Building (Cultural Centre)
At 300 rue Saint-Charles-Ouest, this cultural centre runs a programme of exhibitions. It is a straightforward way to see something local without committing a large part of your day.
Check the exhibition programme on the centre's website before you go, as the schedule changes. It is on rue Saint-Charles, so it combines naturally with the co-cathedral and Maison Daniel-Poirier.
11. Exhibitions on the Campus of the University of Sherbrooke
At 150 place Charles-Le Moyne, near the Longueuil-Université de Sherbrooke Metro Station, the campus hosts exhibitions. The metro location makes this the easiest of the cultural stops to reach without a car.
Because it is on a campus, check what is showing before making the trip. It works well as a short stop on a day when you are using the metro.
12. Exhibitions in municipal libraries
Each municipal library in Longueuil organises exhibitions and other public events. This is a low-effort option if you are already in a neighbourhood and want to see what is on.
Programmes vary by branch and by season, so check locally during your visit rather than planning around a specific show.
13. Quebec National Day
Held on boulevard Davis in the Parc de la Cité, this is the city's large-scale National Day celebration, usually including an outdoor stage musical performance and fireworks. It is the biggest single event in the parks calendar.
Because it takes place in Parc de la Cité, you can spend the afternoon on the lake path and stay for the evening programme. Arrive early enough to find space.
14. Lumifest
Held in late September on rue Saint-Charles Ouest in Vieux-Longueuil, this public event celebrates digital arts, local culture and gastronomy. A dozen digital works light up Saint-Charles Street West, with immersive projections, DJ and VJ performances, shadow theatre, live digital graffiti frescoes and giant puppets.
There is a food side too: Lumibouchées coupons let you try dishes from restaurants including Küto tartare, Pizza No 900, Toktok, L'Gros Luxe, Frites Alors, École hôtelière de la Montérégie and Boldwin organic beers. Go in the evening, when the projections are lit.
15. Le Parcours du Cerf
A golf course at 2500 boulevard Fernand-Lafontaine with 39 holes across two distinct courses: L'Actuel with 12 holes, and Le Classique with 36 holes or four separate nine-hole courses named Green, Blue, White and Red. There is a driving range with several hitting areas, and internal tournaments and interclub competitions are organised.
Services include a pro shop and a dining room with a Sunday brunch. Book ahead through the course, and note this is a seasonal activity rather than a year-round one.
If you only have one day
Morning: Start in Old Longueuil at the Co-Cathedral of Saint-Antoine-de-Padoue, which opens at 08:30, and include the small museum in the basement. Then walk rue Saint-Charles: Maison Daniel-Poirier is at 255 rue Saint-Charles Est, and the Marcel-Robidas Building cultural centre is at 300 rue Saint-Charles-Ouest. If you have booked ahead, the Museum of Women is a short addition, but it needs at least 48 hours' notice.
Afternoon: Move to the river. Walk or cycle Parc Marie-Victorin along chemin de la Rive for the views across to Montreal, then, if it is summer, take the ferry from the Promenade René-Lévesque landing stage to the Longueuil municipal beach on Île Charron. If you would rather stay inland, Parc Michel-Chartrand offers the 5-km loop, the marsh and the deer, with a snack bar at the reception pavilion.
Evening: Return to Old Longueuil. Check whether the Théâtre de la Ville has a performance at 150 rue De Gentilly Est and book through the ticket office. If your visit falls in late September, Lumifest on rue Saint-Charles Ouest is the evening to plan around, with digital projections and Lumibouchées coupons for the restaurants along the street.
Frequently asked questions
Do I need to book anything in advance in Longueuil?
Yes, for several places. Maison Daniel-Poirier is open by appointment only and you must call to reserve. The Museum of Women requires a reservation at least 48 hours in advance. For the Théâtre de la Ville, book through the ticket office.
Which parks in Longueuil are free to visit?
Parc Michel-Chartrand, Parc Marie-Victorin, Parc de la Cité, the Réserve naturelle du Boisé-Du Tremblay and the Longueuil municipal beach are all listed as free.
When is the best time to visit for events?
July brings the Quebec National Day festivities to Parc de la Cité, with an outdoor stage performance and fireworks. Late September brings Lumifest to rue Saint-Charles Ouest in Vieux-Longueuil. The municipal beach ferry runs in summer.
Can I visit Longueuil without a car?
The Exhibitions on the Campus of the University of Sherbrooke are at 150 place Charles-Le Moyne, near the Longueuil-Université de Sherbrooke Metro Station, which makes that stop straightforward by metro. The municipal beach is reached via Highway 20 and the Île Charron exit, though in summer a ferry connects it to the Promenade René-Lévesque landing stage.
Pick your season, make the two or three calls that need making, and you have enough for a full day on the south shore.