Also available in: Finnish

Welcome to the underwater world of Finnish fish at Maretarium!

In Maretarium you will meet the most of the Finnish fish species. Some species you may see both as small juveniles as old adults. Fish in Maretarium live according to the Finnish four seasons. If you are lucky enough, you may see spawnings. February is a spawning time for burbot and four-horned sculpin, spring for lamprey, ide, bream, perch and vimba bream, summer for three-spined stickleback, gudgeon and pikeperch, autumn for brown trout and Atlantic salmon. There are 22 fish tanks in Maretarium.

From the cash desk you will get a list of Finnish fish species and a pencil and so you can mark those species you will see during your aquarium tour. Lists of the fish species are available with 19 different languages – maybe also with your mother language (русский, deutsh, nederlands, español, magyar, polski, čeština, eesti, norsk, english…) .
The aquarium tour takes about one hour and fifteen minutes. If you cannot go through the entire tour in one go, you can pop in at Café Meri Cafe Kristina to have some refreshments. After the tour, we recommend a visit to the Sea Shop.


  • Itämeri-allas osittain tyhjänä
  • Itämeri-allas melkein tyhjänä
  • Viimeisiä kaloja siirretään pois Itämeri-altaasta
  • Itämeri-allas tyhjillään.

The Baltic Sea Tank will be renovated during November-December

Maretarium is closed during November-December 2018. During that time e.g. the Baltic Sea [...]

Info for visitors


Mon-Tue & Thu-Sun 10-17,
Wed 12-19

every day 10-19, except 21.6. 10-14

Mon-Tue & Thu-Sun 10-17,
Wed 12-19


Mon-Tue & Thu-Sun 10-17,
Wed 12-19

Adults 14,50 €

Pensioners, students 12,00 €

Children (4-15 yrs) 7,50 €

Family tickets:
2 adults
+ 1 child 34,00 €
+ 2 children 41,00 €
+ 3 children 48,00 €
+ 4 children 55,00 €

Children under 4 years and special group assistants for free

Groups (minimum of 15 people):
– 1 €/ticket

For additional information please contact us at:

You can book a guided tour for your group.

Guided group tours

1 – 20 persons, duration 1 hour, 65 €/group
21 – 50 persons, duration 1/2 hour, 65 €/group

For guiding contact at least one week beforehand: