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Midsummer at Heureka 2026 - activities and experiences in Vantaa
Buy Heureka tickets €3 cheaper in advanceAre you spending Midsummer in the Helsinki metropolitan area? Here's a fun tip for you: Heureka, the Finnish Science Centre.
Heureka offers both activities and the joy of discovery for all ages! Under one roof you'll find exhibitions, planetarium films, and amazing science shows. Did you know that in the summer, Heureka's exhibition offerings extend to the backyard when the Galilei Science Park is open?
In this article, you'll find everything you need to plan your Midsummer visit to Heureka. You can find more information about Heureka's opening hours during Midsummer, arrival instructions, prices, and other practical tips.
What to do at Heureka for Midsummer?
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Exhibitions and Experiences
The best thing about Heureka is its versatility: everyone will enjoy themselves here. Our exhibitions invite you to play, but also to discover and understand.
- Especially during Midsummer, you should visit the highly popular Giants of the Ice Age exhibition, which is open until August 30. In the exhibition, you will encounter about 20 life-size animal robots and get to dress up in clothes in the style of the Ice Age people.
- In summer 2026, the planetarium will show 3 different films: Asteroid Quest, The Stellars - Mission: Green, and the new film The Heart of the Forest.
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Outdoor Exhibitions and Summer Activities
Admission to the Galilei Science Park is included in the price of a Heureka ticket during the summer. The park offers many different attractions, such as:
- A giant xylophone where you can play your favorite songs.
- A wheelchair track where you can test how well you can navigate a wheelchair through different levels, doors, and thresholds.
- A human yo-yo where you get to experience being a yo-yo and float in the air.
Tip! Especially on hot days, the park's fun water attractions encourage play, so getting wet is possible. It's a good idea to pack a change of clothes! -
Kids' favorites
Every child should get to visit Heureka during their summer holiday, right? Heureka offers plenty to do for both children and the young at heart.
The following exhibitions are especially suitable for the youngest members of the family:
- The Play and Explore exhibition invites you to let loose, be brave, and be creative.
- In the Water – The Current of Life exhibition, you can build dams and explore water's journey from glacier to sea.
Heureka Midsummer opening hours 2026
Heureka is open during Midsummer with the following opening hours:
- Midsummer's Eve 19.6. 9 AM – 6 PM
- Midsummer's Day 20.6. 10 AM – 6 PM
Who is Heureka's Midsummer for?
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Families
Midsummer at Heureka is an excellent choice for families with children. You'll surely be entertained in the exhibitions for several hours – or even the whole day!
Heureka offers activities for all ages. The youngest members of the family will surely enjoy the Play and Explore exhibition, and older children will find a wide range of activities in the Our Journey in Space exhibition. -
Couples
Heureka is an excellent date spot - even during Midsummer. So, grab your Midsummer date and come immerse yourselves in science. Heureka's exhibitions offer insights even for adults.
Psst! Right outside Heureka, you'll also find perfect picnic scenery along the Keravanjoki River. -
Tourists in Helsinki
Heureka is a short distance from Helsinki city centre: the train journey to Tikkurila station takes about 15 minutes. If you're on holiday in Helsinki, you should definitely also visit the wonderful world of science!
- Content texts for all of Heureka's exhibitions are available in Finnish, Swedish, English, and Plain Finnish.
- Planetarium films can be listened to in Swedish, English, and Plain Finnish via headphones.
Why choose Heureka for Midsummer celebrations?
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Weatherproof activities
Heureka is a great destination no matter the weather. Most of the exhibitions are indoors, but in the summer, science continues in the backyard at Galilei Science Park. Rain or sunshine, you are sure to enjoy your time at Heureka!
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Easy to access: quick connections from Helsinki
You can easily reach Heureka by public transport, car, or bicycle. You can read more detailed arrival instructions by clicking here.
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A different Midsummer experience
If you're looking for a change from traditional Midsummer celebrations, Heureka offers the perfect setting. Get excited about science, eat well, and enjoy the beautiful surroundings! Midsummer at Heureka will surely be memorable.
Exhibitions and performances
Heureka Midsummer program
In addition to exhibitions, Heureka also shows planetarium films daily. On weekends and public holidays, various science programs are often available, such as science theatre performances and laboratory experiments. You can view the program for your visiting day via the link below.
Below you will find all of Heureka's exhibitions.
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Giants of the Ice Age
8.2.2025–30.8.2026
Nearly twenty life-size animal robots await visitors at the Giants of the Ice Age exhibition - including a mammoth and a saber-toothed cat!
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Our Journey in Space
10.2.2024-6.1.2027
Our Journey in Space is an interactive science center exhibition for the whole family
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Play and Explore
On display until further notice
The exhibition consists of sites from the Power of Play exhibition and the Idea Workshop. Play is natural and essential for human well-being. Playing is about exploring and experimenting, getting to know ourselves and each other. Through play, we learn to explore the world, and we should maintain this skill...
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Exhibitions Outdoors
Open until 27.9.2026
At Science Park Galilei you can try out large-scale objects based on music, mathematics and physics phenomena. Open until 27.9.2026
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Water – The stream of Life
On display until further notice
Water – The Stream of Life. The exhibition is suitable for people of all ages and backgrounds, to children and to adults, as well as the curious and those who like to delve deeper.
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Artificial Intelligence – Me, Myself & AI
Exhibition is on display until further notice
Welcome to the world of artificial intelligence! The mini-exhibition brings together the best parts of the previous exhibition at Heureka. Come and try out the artificial intelligence-based devices and games that the main character of the exhibition, the Scientist, had made for his home.
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Heureka Classics
On display until further notice
Experience our classic destinations with the whole family! Heureka Classics has a selection of the most beloved aha-experiences.
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Science on a Sphere
The Science on a Ball site presents data collected by satellites about climate and space, among other things.
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Main Exhibition Area
In the main exhibition area you will find tightrope cycling, Foucault's pendulum, the Water - the Stream of Life exhibition and Heureka classics.
Discover Heureka's planetarium films
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Asteroid Quest
Best suited for ages 10+
In the planetarium film Asteroid Quest, you will learn about asteroids, their secrets, and how scientists are learning to deflect asteroids to prevent catastrophic collisions.
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The Stellars - Mission: Green
Especially recommended for elementary school aged children
The Stellars - Mission: Green planetarium film combines space adventure, humor and a message of environmental protection.
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The Heart of the Forest
On the program from June 1st
Welcome to an enchanting journey into the world of trees! In the planetarium film The Heart of the Forest you will learn about the cycle of life, the power of forests, and their biodiversity.
Discover Heureka's public performances
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Science On a Sphere -shows
During guided performances, participants analyse satellite data about the oceans, climate, the earth's crust and space.
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Laboratory experiments
In the laboratories, you can learn about microscopy or chemical reactions, for example, under the guidance of an inspirer.
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Rat feeding show
Heureka's domestic rats are among the science center's most popular destinations. In the rat feeding shows, you will hear more about the life of Heureka's rats.Their performances are on hiatus due to renovations and will continue in the beginning of 2025.
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Tips for a successful Midsummer at Heureka
Heureka has fun activities for a whole day, a restaurant , a shop and free parking. Below you will find all the practical information you need to plan your visit.
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Tickets and prices
You can buy Heureka tickets in advance for €3 less from the online store. The Heureka ticket includes all exhibitions, programs and planetarium films.
In advance from the online store (tickets for the current day can be purchased from the online store until Heureka's opening time):
- €23/adult (over 18 years old)
- €16/children + youth (5–17 years)
- €16/students, unemployed, pensioners and conscripts*
- €0/children under 5 years old.
- €0/ Museum Card / Kaiku card
On-site (ticket sales on-site end one hour before Heureka closing time):
- €26/adults (over 18 years old)
- €19/children + youth (5–17 years)
- €19/students, unemployed, pensioners and conscripts*
- €0/children under 5 years old.
- €0/ with Museum Card and Kaiku Card
Directions and parking
Heureka is easily accessible by both public transport and your own car. You can find more detailed arrival instructions by clicking here.
What should I bring with me when visiting Heureka during Midsummer?
You don't need to bring anything special with you to visit Heureka - all you need is a curious mind!
- You are allowed to bring your own snacks and can eat them in the snack area upstairs. The snack area is accessed via a spiral staircase or elevator, which can be found next to the Giants of the Ice Age exhibition .
- It is a good idea to wear comfortable clothes to Heureka so that it is as comfortable as possible to try out the functional sites, such as the Moon Walk site in the Our Journey in Space exhibition .
- Science Park Galilei features several exhibits that involve water. It's a good idea to pack a change of clothes in case you get wet!
What ages is Heureka suitable for?
Heureka is suitable for all ages. There is plenty to do for both children and adults, so you can come to Heureka during the winter holidays with the whole family or just adults. Here are a few age recommendations and restrictions that are good to know before visiting:
- The age limit for the planetarium is 5 years. The Stellars - Mission: Green planetarium film is especially recommended for children aged 5–10, the Asteroid Quest planetarium film is recommended for those over 10, and the Recombination planetarium film is especially suitable for those over 7.
- The Play and Explore exhibition is especially suitable for the youngest members of the family.
- The Moonwalk attraction in the Our Journey in Space exhibition has a height limit of 140–210 cm and a weight limit of 30–150 kg.
Toilets and childcare facilities
- The childcare facilities is located in the entrance hall behind the coat racks. The toilets are also located in the same area.
- Toilets are also available in the corridor behind the spiral staircase next to the Giants of the Ice Age exhibition and in the snack area upstairs. The snack area is accessible via the spiral staircase or by elevator.
Dining and shopping
- The Science Restaurant offers a hearty lunch, a delicious Science Snack Menu, and smaller savory and sweet snacks every day.
- Heureka Shop is located in the lobby. You will find the best science gifts and souvenirs from your visit to Heureka.
Accessibility
- Heureka is committed to providing an accessible experience for all visitors. Our space is designed to accommodate various mobility restrictions and other special needs. You can read more about accessibility at Heureka by clicking here.
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Quick tips for a Midsummer visit to Heureka
1) We are open on Midsummer's Eve, June 19th 2026, from 9 AM to 6 PM, and on Midsummer's Day, June 20th 2026, from 10 AM to 6 PM. You can find everything you need to plan your visit by clicking here.
2) The average visit time at Heureka is about 4 hours – so be sure to set aside plenty of time for your visit!
3) During Midsummer 2026, we especially recommend experiencing the completely renovated and state-of-the-art planetarium at Heureka. We also suggest visiting our newest exhibitions, Play and Explore and Water – The Stream of Life.
Currently at Heureka
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Summer tips for your Heureka-visit
The most fun adventure of your summer vacation awaits you at Heureka! Check out the best tips for a memorable visit to Heureka and come spend an unforgettable summer day surrounded by science.
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Midsummer at Heureka
Looking for things to do in Helsinki during Midsummer? Head to Heureka in Vantaa – exhibitions, experiences, and tips for the whole family.
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Summer Science Camps 2026
Are you looking for a summer camp for your child in the Helsinki Metropolitan Area? Heureka organizes week-long science and space camps for elementary and middle school children throughout the summer. Tickets are on sale until 2 p.m. the Wednesday before the start of the chosen camp or until the...
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NCISC competition entries on display at Heureka
The NCISC is an annual science competition held in the US for American high school students. Some of the competition entries will be presented at Heureka from June 30th to July 1st. Read more about the competition entries and schedule on this page.
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New episodes of hilarious Heureka moments
Our hilarious science duo is back with a new episode of mind-blowing scientific tricks! Watch the latest Heureka moment on this page. Note! The videos are in Finnish.
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AI Art Recognition Test online (in Finnish!)
Can you distinguish genuine works of art from those fabricated with generative AI? Find out in Heureka's free AI art identification test! As you take the test, you'll get tips on how to identify AI-generated works.
