Things to Do in Helsinki: 40 Ideas Ranked by the Type of Traveler You Are

For two hundred years, you could be shot for going there. Vallisaari was a Russian fortress, then a Finnish army ammunition depot, then nothing at all — torpedo storage and gunpowder cellars, sealed off from civilians while the rest of Helsinki grew up across the water. The soldiers left in 2008. The public didn’t get the keys until May 2016.

So the wildflower meadows, the powder cellars gone soft with moss, the island wine bar twenty minutes from Market Square: none of it counted among the things to do in Helsinki until eight years ago. Most lists of the best things to do — the standard Helsinki attractions — still skip it.

Most visitors still don’t know it’s there.

That gap is the whole point of this guide. The best things to do in Helsinki are its islands, its sauna culture, and a food scene carrying six Michelin-starred restaurants in a city you can walk across in forty minutes — but the standout, the one that didn’t exist on any tourist map a decade ago, is Vallisaari. What follows is ranked by the kind of traveler you are. Skip to your section. Or read the whole thing and find out you’re three travelers at once.

What 4.9 Million Visitors Get Wrong About Helsinki

Helsinki set an all-time tourism record in 2025: 4,924,251 overnight stays, up 8.2% on the year before, with international stays climbing 17.4% (City of Helsinki). The city now accounts for 36% of every international overnight stay in Finland. That is a lot of people. And nearly all of them chase the same ten spots — Market Square, the cathedral steps, Suomenlinna, one sauna, done.

Here’s what almost none of them notice. Helsinki has 327 islands inside city limits and 131 kilometres of shoreline; roughly 70% of the metropolitan area is sea, not land (City of Helsinki facts and figures 2025). Seventy percent. The single most defining feature of this city is the part most visitors photograph from a distance and never set foot on.

A record crowd moves like a flock of starlings — thousands of bodies, one shared instinct, all of it banking toward the same few landmarks. And the flock has a map. The map is small. The interesting Helsinki — the wilderness, the wood-fired heat, the chef foraging before his morning shift, the island that was off-limits for two centuries — sits a short ferry ride outside its edges.

So the real question isn’t “what are the top ten things to do in Helsinki.”

It’s: what is that whole flock walking past?

For the Nature Lover: The Island That Was Off-Limits for 200 Years

Start with the one nobody could visit. Vallisaari spans 110 hectares of forest, cliff, and meadow, and for over two hundred years it was a Russian military fortress and then a Finnish Defence Forces ammunition depot — torpedo storage, gunpowder cellars, the kind of place you do not wander into. The army held it until 2008. It opened to the public in May 2016 (IISI guide).

Leave a place alone for two centuries and it doesn’t wait politely for your return. With no development and no crowds, nature staged a quiet takeover. The island now supports over 400 plant species — some of them growing straight out of the old fortifications, roots prying into the cracks of walls built to store explosives.

It is, by accident of military history, one of the richest pockets of biodiversity in the whole archipelago. A nature reserve that exists because the public was kept out of it.

You walk it on foot. The main loop passes bunkers, ramparts, and the powder cellars, then opens onto meadow and a clear view across the Helsinki archipelago. Bring proper shoes — this is uneven island terrain, not a city park, and a fair amount of it is exposed.

That last part matters more than it sounds: Vallisaari is outdoor-driven and weather-dependent. On a bright June day it’s extraordinary. In horizontal Baltic rain, you are simply in the rain, so pack a real jacket, not a fashion layer.

We’ve mapped the whole island into a walking guide — the gunpowder cellars, the fortress walls, the meadows reclaimed by those 400-plus species — so you can follow it at your own pace instead of guessing at every fork.

The Man Who Bet His Last €5,000 on an Empty Island

The island reopened in 2016. The thing that makes it worth a whole afternoon came later, and it came from someone who didn’t even know where Vallisaari was.

That someone was me — Oliver Laiho.

In January 2019 I started with a two-square-metre coffee table in the basement of Maria01, Helsinki’s startup campus, selling Superkahvia — bulletproof coffee with superfoods. Two months in, I had made €180. Not €180,000. €180.

Then a customer mentioned he had two cafés on an island and asked if I wanted them. I said yes before admitting I had no idea which island he meant.

It was Vallisaari. My younger brother Kasimir joined in 2021 after earlier partners walked away, and the two of us rebuilt both cafés from nothing. In 2023 I put my last €5,000 into a terrace by the water — the kind of bet that’s either a beginning or an ending. The first wine tasting we ever ran had four people at it.

All four were family.

Then it turned. In 2024 the venue sold out twice before summer even started, without a euro of advertising. In 2025 we ran roughly 90 events across about 100 days of season. The terrace became “Helsinki’s only island wine bar,” and the salmon soup at IISI Bistro — more than 20,000 bowls poured since 2019 — became, in the words of more than one regular, the soup people take the ferry for. None of which I’d have believed standing in that basement with my €180.

So here’s what it is, plainly, because a beautiful story is useless if you can’t book it. The wine tastings are sommelier-led flights of around five wines, with a proper tapas buffet, always, included — an unhurried evening, not a rushed pour. Many evenings are built around a rotating theme that moves through the season, region by region and style by style.

Price is €59 for the base tasting, €79 for a themed evening (as of summer 2026). Capacity runs 62 to 80 per session, mostly on Saturdays — and the Saturday sessions are the busy, buzzy ones, so if you’d rather a quieter table, ask whether a weeknight tasting is on the calendar. It’s held on the Cafe terrace, and if it rains, we move it into the Wine Barn right next door — you’re never stranded. But the terrace is open-air, so a cool Baltic evening can creep in well before we’d move inside: bring a layer. Finnish by default, but the sommeliers speak English, so don’t let language stop you. Change-of-date and cancellation terms are shown at checkout before you pay.

Our sommelier-led tastings pour those five wines with the full tapas buffet on the sea terrace, and the Saturday sessions tend to sell out a week or two ahead. Don’t take my word for the terrace at golden hour — it’s all over our Instagram, @iisivallisaari, the buffet and the sea light and the full tables, the part words can’t sell. If you want the rest of the backstory first — the coffee table, the €180, the four family members — the full story is here.

See upcoming wine tastings on Vallisaari — book before the weekend sessions go.

For the Sauna Seeker: 3.3 Million Saunas, Three Worth Your Evening

Finland has roughly 3.3 million saunas for 5.5 million people, and in December 2020 Finnish sauna culture became the country’s first entry on UNESCO’s Intangible Cultural Heritage list (UNESCO). It is not a spa add-on here. It’s closer to a kitchen table — the place where things finally get said. Three are worth your evening, depending on what you’re after.

If you want free and gloriously unpolished, go to Sompasauna on Mustikkamaa island (Kansanpuistonpolku 5). It’s volunteer-run, wood-fired, open year-round, and there are no staff at all — you help chop the firewood and stoke the stove, then swim in the Baltic between rounds (SuomiGuide). Bring your own towel. Bring some humility.

If you want heritage, go to Kotiharjun Sauna in Kallio (Harjutorinkatu 1), open since 1928 and Helsinki’s last surviving wood-fired public sauna. Admission runs about €15–16, open Tuesday to Sunday from 14:00 (Kotiharjun Sauna). Wood heat is softer and rounder than the electric kind — once you’ve felt the difference, the difference is all you feel. Honest caveat: it’s old-school and unfussy, so if you need design-hotel polish, this isn’t your night.

And if you want design and a sea view, go to Löyly (Hernesaarenranta 4): two saunas, a Baltic plunge straight off the deck, from about €19 for two hours. It’s the architecture-magazine pick, and it books out in summer — reserve ahead.

For the Food & Wine Lover: Two Michelin Stars and a Sea Terrace

Here is the case for Helsinki as a food city, in one statistic: six Michelin-starred restaurants in a town you can cross on foot in under an hour (The Nordic Nomad). Two of them — Grön and Palace — hold two stars each as of 2026.

Grön is the one to understand. Toni Kostian was named Finland’s Chef of the Year back in 2016; these days he’s out in the cold before service, pulling wild herbs the supplier could never ship, building that night’s plant-forward tasting menu out of whatever the forest is doing this week. It is precise, seasonal, and deeply Finnish in a way no imported luxury could be. That’s one end of the city’s range. So what’s the other?

The other end is natural wine without the markup. Kallio is the neighbourhood for it — Wino on Fleminginkatu has poured European natural wines since 2017, and a few streets over, Harju8 does glou-glou bottles with live jazz on weekends. One sharp recommendation beats ten vague ones, so start at Wino, then walk to Harju8 when the jazz starts.

And then there’s the island end — the same obsessiveness, fewer walls. The wine tastings on Vallisaari put five wines and a full tapas buffet on a sea terrace: same care a white-tablecloth room demands, salt air where the ceiling used to be. If you’d rather eat on the meadow than at a table, you can pre-order a picnic basket and carry it straight off the ferry.

For the Culture Hound: Silence, Skylights, and August Festivals

Finnish design earns its reputation by solving human problems in places you wouldn’t expect. The clearest example is the Kamppi Chapel of Silence, designed by Kimmo Lintula with Niko Sirola and Mikko Summanen and opened in June 2012. It’s an oval cocoon of curved spruce wood dropped into the middle of a shopping district, engineered to block every decibel of the city. No services, no events, no speaking. Free, open daily 07:00–20:00 (10:00–18:00 weekends) (e-architect).

You step in off a retail street and the noise simply stops. Like a needle lifting off a record mid-song. It’s the most Helsinki building in Helsinki.

For something stranger, Amos Rex (opened 2018 in the old Glass Palace) buried its main gallery underground, then pushed the domed skylights up through the public square outside — so the plaza bulges with giant concrete bubbles people climb and photograph. Summer 2026’s headline show is the Generation triennial, 50 artists and collectives, running May 13 to September 6 (Amos Rex). Best shot of the domes is from the square at dusk.

If you’re here for music, time it to Flow Festival, August 14–16 2026 at the Suvilahti power plant — Florence + The Machine, Nick Cave & The Bad Seeds, Turnstile, PinkPantheress, and more. It’s 18+, and tickets move; check flowfestival.com for current prices (Flow Festival).

For the Budget Traveler: Beaches, Bikes, and Zero-Euro Helsinki

The “expensive Nordic city” reputation is half true and easy to dodge. Helsinki has 26 free public beaches and swimming areas and over 1,200 kilometres of cycling paths; the HSL city-bike network runs May–October and costs about €5 for a day (City of Helsinki). A bike and a swim is a full, excellent day for the price of a coffee.

Stack the free things and you have a whole itinerary that costs nothing: the Chapel of Silence, Oodi central library (an architectural landmark you can just walk into), Senate Square, Esplanadi, the Sibelius Monument, and Sompasauna’s free wood-fired heat on Mustikkamaa where, again, you chop the firewood yourself. The sea is free. The forest is free. Most of the best of Helsinki is.

The honest footnote: the island experiences aren’t zero-euro, because someone has to run the ferry and pour the wine. The JT-Line crossing to Vallisaari is €9.80 return (as of summer 2026), roughly every 30 minutes from Market Square in summer. But what does that ferry ticket buy you? The walking, the views, and the 400 plant species cost nothing once you’re there — and genuine wilderness twenty minutes from a capital is the one thing on this whole list your money can’t buy on the mainland.

Frequently Asked Questions

What is the best time to visit Helsinki?

June through August, for islands, terraces, and sauna swims. Around Midsummer (about June 21) the sun sets after 11 PM — nearly 19 hours of daylight. August brings Flow Festival (14–16). Vallisaari’s IISI season runs to its 12 September 2026 closing party, so book a wine tasting before the weekend sessions go.

How do you get to Vallisaari island from Helsinki?

Take the JT-Line ferry from Market Square (Kauppatori) — about a 20-minute crossing, roughly every 30 minutes in summer. The fare is €9.80 (as of summer 2026); the last boat back varies by date, so check jt-line.fi rather than trusting a fixed time. On the island, IISI Bistro serves food daily — from 11:00 most days, noon on Wed–Thu — and the salmon soup is here; the Cafe IISI wine bar runs Thursday–Sunday, with tastings from €59 mostly on Saturdays.

What free things are there to do in Helsinki?

Plenty. The city has 26 free public beaches, the Kamppi Chapel of Silence (free, daily 07:00–20:00), Oodi central library, and free wood-fired heat at Sompasauna on Mustikkamaa, where you chop your own firewood. Senate Square, Esplanadi, the Sibelius Monument, and Kaivopuisto Park cost nothing. The sea views are the best free thing of all.

Is Helsinki worth visiting for food and wine lovers?

Genuinely, yes — and it’s underrated. Six Michelin-starred restaurants sit in a walkable city, two of them (Grön, Palace) holding two stars in 2026. Kallio’s natural-wine bars pour serious small-producer bottles without tourist markup. For island wine, IISI Vallisaari runs sommelier-led themed tastings (€59–€79) with a full tapas buffet on a sea terrace — Saturdays sell out a week or two ahead.

Which Helsinki sauna should I go to?

Depends what you want. For free and unpolished, Sompasauna on Mustikkamaa — volunteer-run, wood-fired, bring a towel and help with the fire. For heritage, Kotiharjun Sauna in Kallio (open since 1928, about €15–16, Tue–Sun from 14:00), Helsinki’s last surviving wood-fired public sauna. For design and a Baltic plunge, the harbour saunas like Löyly or Allas — book those ahead.

What are the best Helsinki experiences that aren’t in guidebooks?

Vallisaari tops the list — closed to civilians for 200+ years, opened only in 2016, with wine tastings at IISI from €59. Then Sompasauna’s free volunteer sauna, the Kamppi Chapel of Silence, Amos Rex’s bubbling skylights from the square at dusk, and Kallio’s natural-wine bars. The pattern: the best Helsinki sits just outside the standard map.

Ready to find the island most visitors miss? See upcoming wine tastings on Vallisaari and book before the weekend sessions sell out.