Kids can jump on bouncing castles, build, race, swing and explore. The site is indoors and covers 1000m², there is something for all age groups including a section for under 3 year olds.
They are open from 10am to 8pm and entrance is 8€ for under 3s and 12€ for 3 to 14 year olds.
Adults enter for free and kids can't be left there alone. Although the entrance price is reasonable you can buy additional game tokens which may bump up the price! Read more here.
This 54 acre zoo is located on the Island of Korkeasaari, you can reach it by car, ferry or water bus. The different sections of the zoo are according to the animal's natural habitat.
There is an aquarium within the Amazonia section and several times a year there is a Night Walk evening tour. The zoo was established in 1889 is the country's largest zoo. Details here.
The permanent exhibits here are all interactive and welcome visitors to discover the world of science in a hands-on experience.
There are over 200 exhibits and activity stations. The museum tackles subjects like climate change and you can visit a city from the future or watch laboratory rats playing basketball!
At the same site there is an ultra-modern planetarium.
You can reach this water park at Tornimaentie 10, by bus as it is 20km out of the center but once there kids can play in the children's pools, go down numerous slides and be in the wave pool.
It is the largest water park in the Nordic countries, there is a 140 meter long slide and water attractions are both indoors and out.
An all day pass is 24.5€ and the park is open year round.
This museum is one of six museums on the island of Suomenlinna just off the coast of Helsinki. The island itself is a major attraction with plenty of sites but not all will interest kids. The ferry ride over to the island is fun and the Doll and Toy Museum will enthrall them.
The museum's thousands of teddy bears, dolls, games and toys date back to the 1800s. While on the island explore the old fortress and you can even see an old submarine!
On Magpie Island you can see gardens, old military buildings, marshes, meadows and animals and what's more admission and tours are free! You have to take connecting boats to reach this island but that's fun too!
The island is known for its biodiversity and migrating birds. Take the 1km path which circles the island and see the flora and fauna.
Take kids aged 4 to 10 to the Realm of Wellamo Nature House where they can dress up as mermaids and learn about the sea creatures through play and stories. Read more.
This is a small zoo focused on farm and domestic animals located at Malminkaari, Fallkullantie 1, which is slightly out of the city center and offers rural surroundings where kids can get their boots muddy and mess with the goats, cows and horses.
Kids will see a typical Finnish farm and learn how it operates. Reach the farm by train to Tapania and from the station it is a short walk.
This is considered the best beach in Helsinki and during the hot months it is extremely popular. The beach is open from the 4th June to the 12th August from 10am to 6pm.
On the beachfront are rest rooms, a kid's playground, showers and a café with a terrace overlooking the beach. The beach is located at Hiekkarannantie near Sandstrandsv.
Another great things to do with kids is visit Sealife. This is part of an international chain of "Sealife" attractions so the standard is extremely high. You can see animals being fed, learn about the turtle hospital and get up close with the marine animals in the interactive rock pool.
Many of the animals are rare or endangered and they range from sharks and piranhas to seahorses and the poison dart frog!
This is not the most spectacular show in Europe but the Changing of the Guard is always interesting even when done modestly.
The uniformed soldiers march right past the public along the sidewalk to reach the gate of the Presidential Palace. The Changing of the Guard takes place daily at noon.
Within a few minutes' walk of the guards you can reach Market Square, many of the major attractions and the pier when ferries leave for Suomenlinna.
Read more about things to do in Finland here!