Half an hour north of the city there is a wetland where, on the big autumn days, the sky over the dikes is loud with snow geese. Oak Hammock Marsh is the closest thing Winnipeg has to a guaranteed wildlife spectacle, and it is open all year, not only in migration. Here is what visitors ask before they drive out.

Where exactly is it, and how do I drive there?

The interpretive centre sits at 1 Snow Goose Bay, on Provincial Road 220, in the farmland between Winnipeg and Stonewall. From the city the usual way is north on Highway 8 (McPhillips Street becomes Highway 8 once you are past the Perimeter) or north on Highway 7, then east and north onto PR 220, which runs the last 3.75 kilometres up to the marsh from Highway 67. Blue tourism signs mark the turns. Figure on thirty to forty minutes from downtown in good conditions, longer if you hit the Perimeter at five o'clock. Parking at the centre is free and it is the main way in; there is no bus.

What is actually flying in November?

The headline birds of autumn are snow geese and Canada geese, and the counts at peak migration run into the hundreds of thousands of waterfowl using the marsh in a single day. That peak is a late September and early October event. By the first week of November you are watching the tail of it: whatever has not left yet, concentrated on whatever water has not frozen, which makes for fewer birds but closer ones. Freeze-up ends it. After that the marsh turns into a winter site with a different cast, snow buntings in the stubble, common redpolls, and the chance of a snowy owl on a fence post along the approach roads. Roughly 300 species have been recorded here over the years, so the quiet weeks are rarely empty.

What does it cost, and when is it open?

The interpretive centre charges admission: $14 for an adult, $12 for seniors over sixty and for youth aged three to seventeen, and $46 for a family pass covering two adults and up to four children, with GST on top. Members get in free. Regular hours are 10 a.m. to 4:30 p.m. daily, stretched to dusk during the fall migration weeks from mid-September to mid-October. Four days a year the building is closed outright: January 1, November 11, December 24 and December 25. If you were planning a Remembrance Day outing, that is the one to know about.

Before you go: Admission rates, seasonal hours and the canoe and program schedule all change through the year. Confirm the day's hours at oakhammockmarsh.ca before you drive out, especially in the shoulder seasons.

If I only have two hours, where should I walk?

There are something like 30 kilometres of trails here, colour-coded, with raised boardwalk over the wet sections, and you do not need most of them. Start on the roof. The interpretive centre is built into the ground with a deck on top, and that deck gives you the whole marsh at once, which is the only way to understand what you are looking at before you walk into it. Then take the boardwalk out to the main observation mound. It is a short walk that crosses several kinds of habitat, open water, reeds, wet meadow, so the species change under your feet rather than after an hour. The east mound is the one to pick first thing in the morning, when the light is behind you instead of in your eyes. Some sections of trail are firm and flat enough for a wheelchair; ask at the desk which ones are in good shape that week, because the wet stretches move.

What should I bring?

Binoculars, obviously. Beyond that, think about wind. This is open prairie marsh with no trees on the dikes and nothing between you and the horizon, so a day that feels mild in Crescentwood feels ten degrees colder out there. A hat that covers your ears, gloves and a shell that cuts wind will do more for the visit than another layer of fleece. Bring water. There is no shop out on the trails.

What time of day, and what time of year, is best?

Early morning and the last hour before dark are when the geese move between the marsh and the surrounding fields, and that movement is the thing worth timing a drive around. In late autumn the second half of that window comes early: Winnipeg sunsets fall just after five o'clock in the first week of November and slide to about 4:30 by the start of December. Leave the city by three if you want the evening flight, and remember the building itself shuts at 4:30 even when the sky is still doing something. For the biggest numbers, come back in the last week of September. For the quietest and most varied birding, late May, when the shorebirds and the marsh songbirds are both in and the light holds past nine in the evening.

Is it worth it if nobody in the car is a birder?

Honestly, yes, for the right kind of visit. The exhibits are aimed at families, the roof deck sells itself to anyone who likes a view, and a flock of several thousand geese lifting off is loud enough to turn a sceptic. What it is not is an afternoon that fills itself. If you are bringing people who need more than a marsh, pair it with Stonewall on the way back rather than stretching the marsh to four hours.

Guests at our three-bedroom house in Crescentwood who go usually leave mid-morning, drive north out of the city to Highway 7 or Highway 8, and are back before dinner with wind-burned faces. Our Airbnb listing has the dates.