Marzili: Opening Hours & Season

Marzili is pure Bern summer culture: free riverside lawns, cold-water courage, and a view of the Bundeshaus (Federal Palace) rising above the turquoise Aare that makes a swim feel like sightseeing. It's a publicly run lido—no entry fee—and on a hot afternoon half the city seems to drift down here to float the river, lie on the grass and dry off in the sun. This page is about planning: the season, the hours, how to get there, and how to build a Marzili day that works.

Because it's outdoors and seasonal, the exact dates and hours shift with the weather—so it's worth a quick look at the official page for the day you're visiting.

Season & opening hours

The Marzili runs as a summer-season lido, roughly mid-May to mid-September. Like most open-air baths in Switzerland, the precise opening and closing dates are set each year and can move with the weather and any pool maintenance—in 2026, for example, the lido area opened in late May with the pools following in mid-June. If your trip lands right at the edges of the season, it's worth confirming when you book.

Daily hours flex with the calendar. In the shoulder months of May and September you can expect something like 09:00 to 19:00. In peak summer the gates open early and the place stays lively late—often in the region of 07:00 to 21:00, with weekday mornings tilted toward swimmers and lunch-break locals. During a proper heatwave the hours stretch further still, so a glance at the official page tells you what to expect on the day.

• Season: ~mid-May to mid-September (dates set yearly)
• May & September: roughly 09:00–19:00
• Peak summer: roughly 07:00–21:00, longer in heatwaves
• Cost: free

Getting there

The Marzili sits in the dip directly below the Bundeshaus, on the inside of the Aare's big loop. The easiest scenic arrival is the little Marzili funicular (Marzilibahn), which drops you a couple of minutes' walk from the lawns—and it's free with the Bern Ticket if you're an overnight guest. You can also simply walk down from the Old Town in around 10 minutes; just remember it's uphill on the way back.

Aare swimming: the safety reality

The big draw at Marzili is floating the Aare—walking upstream, slipping into the fast green water and drifting back down to the lawns. It's glorious, and it's genuinely risky if you misjudge it. Aareschwimmen runs roughly June to September, when the river warms to around 20°C (live readings on aare.guru), and it is only for confident, experienced swimmers.

• The current is strong and routinely underestimated; there are no lifeguards in the river.
• You must climb out at the marked exits—the red railings/signposts—at Marzili before the weir.
• Don't swim at high water or after heavy rain, and never float alone if you're unsure.
• Read the full Aare swimming safety guide before any float, and check live conditions first.

What to do at Marzili

• Swim—or at least brave the cold water once for the story.
• Spread out on the lawns for a long picnic afternoon.
• Walk the Aare path and watch the city slow down.
• Pair it with a viewpoint for a complete summer-Bern day.
• Bring water shoes for river entries and exits.
• Pack light and keep valuables waterproofed.
• Plan dinner back in the Old Town—cellar restaurants shine after a swim.
• Skip the river float entirely if conditions aren't right.

Frequently asked questions

Do I need to pay or book?

No. The Marzili is free and you just turn up. There's a kiosk and changing facilities on site, but no ticket gate.

What if I visit outside the swimming season?

In the cold months treat Marzili as a scenic riverside walk rather than a swim. For winter and shoulder-season ideas, lean on Bern in winter and the Aare River guide.

When is it busiest?

Hot weekend afternoons in July and August, when the lawns fill up. For a calmer swim, aim for a weekday morning or the early evening as the crowds thin out and the light turns golden.

Is it really free in such an expensive city?

It is—and it's one of Bern's best bargains. For more no-cost highlights, see free things to do in Bern.

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