Free things to do in Helsinki: Oodi, the City Museum, Winter Garden, Sompasauna and free-entry days

💡 The Short Version: Many of Helsinki’s main sights cost nothing. Free to enter are Oodi Central Library, the Helsinki City Museum at Senate Square, the 19th-century glasshouses of the Winter Garden, the outdoor grounds of Kaisaniemi Botanic Garden, the Sibelius Monument, the nature trails of Seurasaari island park, and the volunteer-built Sompasauna on Mustikkamaa. Two major churches charge: €5 at Uspenski and €8 at Temppeliaukio. 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.

⚠️ Two major churches charge. Temppeliaukio Rock Church charges €8, Uspenski Cathedral charges €5, and Helsinki Cathedral may ask for a summer contribution. Minors are free at the first two.

Free civic and cultural sights

1. Oodi Central Library (Helsingin keskustakirjasto Oodi)

Töölönlahdenkatu 4 (Kansalaistori) | Monday – Friday 08:00 – 21:00, Saturday – Sunday 10:00 – 20:00 | Admission: Free

ALA Architects designed Oodi, which opened in December 2018 as a gift for Finland’s centenary of independence:

• Ground floor: A column-free lobby with exhibitions, chess tables and book-sorting robots.
• Urban Workshop (second floor): A public makerspace with 3D printers, laser cutters, embroidery machines and recording studios.
• Book Heaven (third floor): A white wavy ceiling, indoor trees and the open-air Citizens’ Balcony (Kansalaisparveke) facing Parliament House and Kansalaistori.
• Read our full guide: Oodi Central Library visiting guide.

Sederholm House, constructed in 1757, forms the historic entrance to the free Helsinki City Museum. Photo: Abc10, Wikimedia Commons, CC BY-SA 3.0.

2. Helsinki City Museum (Helsingin kaupunginmuseo)

Aleksanterinkatu 16–18 (Senate Square) | Monday – Friday 11:00 – 19:00, Saturday – Sunday 11:00 – 17:00 | Admission: Free

The museum is on the southeastern corner of Senate Square:

• Sederholm House (Sederholmin talo): Built in 1757 for the merchant Johan Sederholm, the oldest stone townhouse in central Helsinki.
• Children’s Town (Lasten kaupunki): A hands-on area over two storeys where children can steer a model 18th-century merchant ship, dress up and sit at 1930s school desks.
• Exhibits: Displays on daily life in Helsinki from Russian rule to modern pop culture, with 1970s living rooms and vintage tram cars.

3. The Winter Garden (Talvipuutarha)

Hammarskjöldintie 1 A (North Töölönlahti) | Tuesday – Thursday & Saturday – Sunday 10:00 – 16:00 (Closed Mondays & Fridays) | Admission: Free

Donated to the city by Major General Jakob Lindfors and opened to the public in 1893:

• Glasshouses: Three connected conservatories (the Palm Room, the Cactus Room and the Western Wing) hold over 200 plant varieties, including century-old camellias, fan palms and flowering cacti.
• Benches: Sit among the tropical plants with a packed snack.
• Rose garden: From May to October the tiered outdoor rose terrace overlooks the bay.

The historic 19th-century palm glasshouses and free outdoor grounds of Kaisaniemi Botanic Garden. Photo: User:Saandraaa, Wikimedia Commons, CC BY-SA 4.0.

4. Kaisaniemi Botanic Garden outdoor grounds

Unioninkatu 44 (Behind Central Station) | Grounds open daily 24/7 | Admission: Free (Glasshouses require a ticket)

Maintained by the Finnish Museum of Natural History (Luomus):

• Outdoor park: The four-hectare arboretum is free every day. Gravel paths run under native and exotic trees past plant-evolution borders and herb gardens.
• History: Founded in 1829 after the Great Fire of Turku, when the university moved to Helsinki.

5. Sibelius Monument and Park

Mechelininkatu / Merikannontie (Töölö) | Open 24/7 | Admission: Free

Eila Hiltunen’s 1967 memorial:

• Passio Musicae: Over 600 welded stainless steel pipes rise 8.5 metres above a granite knoll.
• Sound: Stand beneath the pipes to hear the sea wind resonate in them.
• Read our full guide: Sibelius Monument and Park guide.

Free outdoor nature walks and seaside loops

Granite sea bluffs and panoramic Baltic views along the southern shore of Kaivopuisto park. Photo: Paasikivi, Wikimedia Commons, CC BY-SA 4.0.

6. Töölönlahti Bay circuit (2.2 km)

A paved walking and cycling loop around Töölönlahti bay, starting behind Oodi:

• On the way: Steven Holl’s Kiasma, the Helsinki Music Centre, Alvar Aalto’s white marble Finlandia Hall and the Finnish National Opera.
• Villas: The eastern shore has painted 19th-century timber villas, including Linnunlaulu (“Birdsong”), home to the Finnish Authors’ Union.

7. Kaivopuisto Park and coastal bluffs

At the southern tip of the peninsula:

• Embassies: Art-nouveau embassy buildings among hillside lawns.
• Ursa Observatory: The red-brick 1926 observatory sits on the park’s highest granite knoll, with a view out to the Suomenlinna bastions.

8. Seurasaari Island Park

Western Helsinki | Footbridge open 24/7 all year | Admission: Free

The museum buildings charge admission from mid-May to mid-September, but the forested island is free year-round across the white timber footbridge:

• Forest walks: Gravel trails past granite coves, pebble beaches and pine woods.
• Wildlife: Red squirrels (oravat) and grazing geese.
• Read our full guide: Seurasaari Open-Air Museum guide.

Budget wellness: Sompasauna

Kansanpuistonpolku 5 (Mustikkamaa) | Open 24/7 year-round | Admission: Free (Voluntary donations)

A free alternative to the €29 commercial saunas:

• Who runs it: Founded in 2011 by sauna enthusiasts and operated by a non-profit association. There are no paid staff, no till and no electricity.
• How it works: Bathers keep the stove going: split birch firewood from the log pile, haul buckets of sea water for steam (löyly) and plunge into the Baltic from the rocks.
• Etiquette: Swimwear is optional, photography is banned and you carry out your own rubbish.

Free museum days and scheduled discounts

The free sights at a glance

What to explore next

• Getting between sights: the Helsinki public transport guide.
• Adding paid sights: the Helsinki Card review shows whether a pass saves money.
• Suomenlinna: the fortress grounds are free; see the Suomenlinna ferry guide.