3 days in Helsinki: itinerary with saunas, Suomenlinna and a day trip to Tallinn or Porvoo

In this guide

💡 The Short Version: Three days covers the waterfront, the sea fortress, the architecture and a sauna, with a day trip left over. Day 1 is Senate Square, Uspenski Cathedral and Suomenlinna, ending at a sauna. Day 2 is Temppeliaukio Rock Church, Oodi Library, the Ateneum and dinner in Punavuori. Day 3 is Porvoo by bus, Tallinn by ferry or a hike in Nuuksio. Buy an HSL 72-hour pass (Zone AB, or ABC if it must cover the airport) for trams, metro and the Suomenlinna ferry. Or book a tour: a 2-hour walking tour with Helsinki Cathedral and the marketad from €40 visits Senate Square, Helsinki Cathedral, Market Square and Uspenski Cathedral, so the central sights are linked for you.

⚠️ Mind the Monday museum closures. The Ateneum, Kiasma, Design Museum and Uspenski Cathedral are closed on Mondays. Put Suomenlinna, Temppeliaukio Rock Church, Oodi Library and the saunas on a Monday instead.

The three days at a glance

Senate Square and the bronze monument to Emperor Alexander II, framed by Carl Ludvig Engel’s neoclassical architecture. Photo: Ximonic (Simo Räsänen), Wikimedia Commons, CC BY-SA 4.0.

Day 1: neoclassical centre, Suomenlinna and seaside sauna

Morning: Senate Square to Katajanokka

Begin at 09:00 on Senate Square (Senaatintori), the 19th-century centre of Helsinki. Carl Ludvig Engel designed the neoclassical ensemble: the Government Palace on the east, the University of Helsinki main building on the west and the white Helsinki Cathedral (Helsingin tuomiokirkko) on a granite terrace to the north. Climb the steps for a view over the rooftops to the South Harbour. A summer entrance fee may apply inside the cathedral, and the crypt below hosts changing art displays.

From Senate Square, stroll three blocks east along Aleksanterinkatu and cross the canal footbridge into Katajanokka. On a granite outcrop stands the Orthodox Uspenski Cathedral (Uspenskin katedraali), built in 1868 of red brick from the Bomarsund fortress, with gilded onion domes. Admission is €5 for adults (hos.fi); under-18s are free. Inside are a multi-tiered iconostasis and a star-painted vaulted ceiling. It is closed on Mondays.

Midday: Market Square and the Old Market Hall

Descend the hill to Market Square (Kauppatori) on South Harbour. Outdoor stalls sell seasonal berries, peas in the pod, reindeer handicrafts and pans of fried vendace (muikku). For lunch go into the Old Market Hall (Vanha kauppahalli), trading since 1889.

At SOUP+MORE, order the salmon soup (lohikeitto): salmon, potatoes, leeks, allspice, cream and dill, with dark rye bread (ruisleipä) and butter. A large bowl comes with bread refills. Scandinavian Cafe sells smoked Arctic char sandwiches.

Afternoon: Suomenlinna Sea Fortress

Walk to the eastern quay of Market Square to board the municipal HSL Suomenlinna ferry. The ferry runs every 15 to 20 minutes throughout the day and takes 15 minutes to cross the harbour. A Zone AB ticket or your 72-hour pass covers it.

From the main quay on Iso Mustasaari you walk through the pink Jetty Barracks (Rantakasarmi). The Swedish crown began building the fortress on six islands in 1748 to counter Russian naval expansion; it is a UNESCO World Heritage Site with about 800 residents.

Follow the well-marked Blue Route (1.5 km) southward through the fortress:

1. Suomenlinna Church: Its octagonal tower functions as both an active church spire and an automated marine lighthouse guiding Baltic shipping.
2. The Great Courtyard (Suuri linnanpiha): The architectural focal point designed by fortress architect Augustin Ehrensvärd, whose elaborate stone tomb stands in the centre.
3. Submarine Vesikko: A restored 1930s coastal submarine that served in the Finnish Navy during World War II; visitors can walk through the cramped engine and torpedo quarters (open May to September).
4. Kustaanmiekka earthworks: Grassy ramparts, stone tunnels and late-19th-century Russian iron cannons above the channel the big ferries use.

Entry to the fortress grounds is free. Have a cardamom bun at Cafe Silo or a craft beer at the Suomenlinna Brewery restaurant (Panimo) near the ferry dock before the ferry back.

The pastel pink Jetty Barracks (Rantakasarmi) welcoming visitors arriving at Suomenlinna main quay. Photo: Leonhard Lenz, CC0, Wikimedia Commons.

Evening: seaside sauna and Baltic dip

• Option A: Löyly (Hernesaari): Take tram 6 from the central station to Eiranranta, then walk 5 minutes south. Avanto Architects designed the timber building, which has a wood-fired sauna and a smoke sauna (savusauna). A two-hour session costs €29.00 per person and includes a locker, towel, seat cover (pefletti) and a ladder into the Baltic. Swimwear is compulsory in these mixed saunas. Book online. The seaside restaurant next door serves Baltic herring and reindeer stew.
• Option B: Allas Sea Pool (South Harbour): On the Market Square waterfront, with a 27°C freshwater pool, an unheated filtered seawater pool and several electric saunas facing the harbour ferries. Single entry is €19 on weekdays and €24 from Friday afternoon (allaspool.fi).

The sculptural timber architecture and seaside terraces of Löyly public sauna on the Hernesaari waterfront. Photo: Lasse Keskinen, Wikimedia Commons, CC BY-SA 4.0.

Day 2: modern architecture, art masterworks and design

Morning: Temppeliaukio Rock Church and Sibelius Park

Start at 09:30 in the residential neighbourhood of Töölö at Temppeliaukio Church (Temppeliaukion kirkko), commonly known as the Rock Church. Timo and Tuomo Suomalainen built it into the granite bedrock in 1969. The roof is a copper disc lined with 22 km of copper wire, ringed by 180 vertical glass strips that light the bare rock walls. Adult admission is €8 (temppeliaukionkirkko.fi); minors enter free.

From the Rock Church, walk 15 minutes northwest through Töölö to Sibelius Park. In the park stands the Sibelius Monument by sculptor Eila Hiltunen: more than 600 hollow steel pipes welded into a wave, with a steel bust of the composer on a nearby rock.

200 metres along the shore, Cafe Regatta is a red timber cottage. Order a cardamom cinnamon bun (korvapuusti) and filter coffee. In winter you can roast sausages over the terrace fire.

Midday: Kansalaistori and Oodi Central Library

Board tram 2 or tram 4 on Mannerheimintie back towards the centre, getting off at Kansalaistori square. Here stands Helsinki Central Library Oodi (Helsingin keskustakirjasto Oodi), opened in December 2018 for Finland’s centenary of independence. ALA Architects gave it a spruce-clad facade that curves over a glass-walled ground floor.

Admission is free:

• Ground floor: Cinema, exhibition spaces and a cafe.
• Second floor: An “Urban Workshop” with sewing machines, 3D printers, laser cutters and recording studios.
• Third floor (“Book Heaven”): A reading hall with a wavy ceiling, trees in white tubs, children’s corners and a terrace facing the Finnish Parliament building (Eduskuntatalo).

Lunch is at the Musiikkitalo restaurant across the square or the cafe on Oodi’s ground floor.

Afternoon: Ateneum Art Museum

Walk five minutes east through the railway square (Rautatientori) to the Ateneum Art Museum (Ateneumin taidemuseo), part of the Finnish National Gallery. The neo-Renaissance building holds Finnish Golden Age art from the late 19th and early 20th centuries. Look for:

• Akseli Gallen-Kallela: Paintings from the Kalevala, the Finnish national epic, including The Aino Myth triptych (1891) and The Defense of the Sampo.
• Hugo Simberg: The Wounded Angel (Haavoittunut enkeli, 1903) and The Garden of Death.
• Helene Schjerfbeck: Self-portraits painted over five decades.
• Eero Järnefelt: Under the Yoke (Burning the Brushwood), portraying traditional slash-and-burn farming in eastern Finland.

Admission costs €23.00 at the ticket counter or €21.00 when booked online in advance; visitors under 18 enter free. It stays open until 20:00 on Wednesdays and Thursdays.

Evening: Design District and Punavuori

From the Ateneum, walk south across the Esplanade into the Design District (Designkortteli) around Punavuori, Kaartinkaupunki and Kamppi. Showrooms along Pohjoisesplanadi include Marimekko (textiles), Iittala (glassware) and Artek (Alvar Aalto bentwood furniture).

For dinner, book a table in Punavuori:

• Kuurna: A candlelit neighbourhood bistro on Meritullinkatu serving seasonal Finnish produce, such as fried pike-perch and beetroot tartare.
• Ravintola Sea Horse: On Kapteeninkatu since 1934, serving fried Baltic herring with mashed potatoes, vorschmack and reindeer steak.

Day 3: choose your regional day trip

Pick one of three:

Historic wooden houses and medieval Porvoo Cathedral rising above the Porvoonjoki riverbank. Photo: Zache, Wikimedia Commons, CC BY-SA 4.0.

Option 1: Porvoo medieval wooden town (recommended for heritage and food)

• Distance & transit: 50 km east. OnniBus and Matkahuolto express buses depart every 20 minutes from the Kamppi underground bus terminal (bay 1–6). The journey takes 50 minutes each way.
• What to do: Walk the cobbled streets of Old Porvoo (Vanha Porvoo), lined with 18th-century wooden houses, craft shops and antique shops. Climb to Porvoo Cathedral, a 15th-century stone church where Tsar Alexander I convened the Diet of Porvoo in 1809. The red-ochre timber storehouses along the Porvoonjoki river once held Baltic goods and tobacco.
• Food: Brunberg Chocolate Shop (trading since 1871) for truffles; lunch at Restaurant SicaPelle or the riverside Cafe Fanny.
• The Porvoo day trip guide has timetables and a walking map.

Option 2: Tallinn, Estonia (recommended for international Baltic history)

• Distance & transit: 80 km across the Gulf of Finland. Fast ferries take about 2 hours each way (Tallink 2 hours, Eckerö Line 2 hours 15 minutes). Tallink Silja (Megastar and MyStar) and Eckerö Line depart from West Harbour Terminal 2 (take tram 7 or 9 from Central Station), while Viking Line operates from Katajanokka Terminal. Fares are on the operators’ sites.
• Border requirement: A valid passport or national EU identity card is mandatory. Check-in closes 20 minutes prior to departure.
• What to do: The ferry dock sits 15 minutes’ walk from Tallinn’s UNESCO-listed Old Town (Vanalinn). Enter through the Great Coastal Gate into streets of Gothic merchant houses, cobbled courtyards and medieval walls. Climb Toompea Hill to Alexander Nevsky Cathedral and the Kohtuotsa viewpoint over the red roofs. Town Hall Square (Raekoja plats) has cellar restaurants serving Estonian rye dishes and craft cider.
• The Tallinn day trip guide covers terminal transfers and ferry schedules.

Option 3: Nuuksio National Park (recommended for nature lovers and hikers)

• Distance & transit: 35 km northwest. Take HSL commuter train line E, U, or X from Helsinki Central Station to Espoo Centre (Espoon keskus, 25 minutes, Zone B), then transfer immediately to local HSL bus 245 or 245A to the Haukkalampi trail gateway (Zone C, 30 minutes; total travel time 75 minutes on an HSL Zone ABC ticket each way).
• What to do: Nuuksio has granite valleys, pine and spruce forest, bogs crossed on duckboards and lakes. Walk the marked Haukankierros Trail (4 km) or Korpinkierros Trail (7 km), and grill sausages at the public campfire site by Lake Haukkalampi.
• Finnish Nature Centre Haltia: One bus stop before Haukkalampi, with natural history exhibitions.
• The Nuuksio day trip guide has the full logistics.

Practical logistics for a 3-day stay

• Where to base yourself: Kluuvi (by Central Station) or Kamppi suits early train and bus departures. For the Tallinn ferry, Katajanokka or Jätkäsaari is closer. See Where to stay in Helsinki.
• Money: Cards are accepted almost everywhere; see Money in Helsinki.
• Season: Summer brings up to 19 hours of daylight; winter brings a frozen sea, Christmas markets and snow. See Best time to visit Helsinki.

Common questions

How should I structure 3 days in Helsinki?

Day 1: Senate Square, Uspenski Cathedral, the Old Market Hall, Suomenlinna in the afternoon and an evening sauna at Löyly or Allas Sea Pool. Day 2: Temppeliaukio Rock Church, Sibelius Monument, Oodi, the Ateneum and the Design District. Day 3: a day trip to Porvoo, to Tallinn by ferry (about two hours each way) or to Nuuksio National Park for a hike.

Can I visit Tallinn as a day trip from Helsinki?

Yes. High-speed passenger ferries operate continuously across the Gulf of Finland, taking about two hours each way. Tallink Silja and Eckerö Line sail from West Harbour Terminal 2 (Länsisatama T2), while Viking Line departs from Katajanokka. Check each operator's site for fares. A valid passport or national identity card is mandatory for border control.

Which public transport ticket is best for a 3-day Helsinki trip?

HSL sells 72-hour day tickets for Zone AB, with Zone C added if you include airport rail transfers. It grants unlimited travel on city trams, metro lines, buses, commuter trains, and the municipal Suomenlinna ferry. It is purchased via the HSL mobile app or station vending machines.

Which day trip is better: Porvoo or Tallinn?

Porvoo is closer: a 50-minute express bus to wooden streets, craft shops and riverside cafes. Tallinn is a different country, with a medieval walled Old Town and Town Hall Square, and needs an early ferry and your passport.

Do I need a passport for the Tallinn ferry?

Yes. Carry a valid passport, or an EU national identity card if you are an EU citizen. A driving licence is not accepted. Boarding closes 20 minutes before departure.