Maretarium has a unique population of eels born in 1976. This year, they will be 50 years old. There are ten 50-year-old eels in the Maretarium. They are about 120 cm long and weigh about three kilograms. In 2019, one of the eels in this population spontaneously matured the eggs in the Maretarium basin, this […]
The Nature Photographs of the Year 2025 exhibition will be on display at Maretarium from 1.11.2025 to 7.12.2025 and after a maintenance break from 26.12.2025 to 1.2.2026. The aim of the Nature Photo of the Year competition is to highlight Finnish nature and the best photographs of Finnish nature of the year – in all […]
The traditional Kotka Fish Market will be held in front of Maretarium on 18.-19.10.2025 from 10 a.m. to 4 p.m. The theme fish is sprat, and sprat handling demonstrations will be held at the tent of the Southeast Finland Fisheries Centre on both market days at 11 a.m., 12.30 p.m. and 2 p.m. Take part […]
Maretarium’s summer exhibition presents the story of the liberation of the Hiitolanjoki rapids through unique photographs, texts and maps. The theme of Maretarium for 2025 is the restoration of waterways. The exhibition features nearly 30 stunning pictures by six photographers that depict change, events and the current state in a restored flowing water environment. The […]
Maretarium’s special spring exhibition features watercolour paintings of fish from the North-East Atlantic and the Arctic Ocean by illustrator and graphic artist Sakke Yrjölä. The 36 original illustrations in the exhibition are related to Sakke Yrjölä’s book project “Nordic Fish in Pictures”. Yrjölä’s previous major project was “Fish of Finland” – a book with 71 […]
When man-made nature is helped to return closer to its original state, it is a question of restoring nature. In most cases, nature would also recover by itself if it were given the opportunity to do so. But this natural process is very slow, and the aim of restoration is to accelerate the restoration of […]
The Nature Pictures of the Year 2024 exhibition will be on display at Maretarium right away. The results of the 44th edition of the Nature Picture of the Year competition were announced on Saturday 19.10. in Helsinki. Timo Mylläri’s stunning bird picture “Congestion” – a snapshot of a flock of Ruffs exuding the intoxication of […]
Maretarium and Maretarium’s souvenir shop Meripuoti are open every day also during Midsummer. On Midsummer’s Eve 21.6., however, only from 10 am to 2 pm, while otherwise Maretarium is open all summer, until August 18, every day from 10 am to 7 pm. After that, the daily opening hours will be reduced by two hours. […]
Situations and feelings from unique Finnish nature. Maretarium’s special exhibition in summer 2024 is the photo exhibition “Situations and feelings” by Jari Heikkinen, a professional nature photographer from Kouvola. Since his school years, Jari Heikkinen (b. 1965) has been interested in photography. Since retiring from the army four years ago, he has been able to […]
On the birthday day 1.5.2024, everyone aged 22 and younger is admitted free of charge. Birthday programme:10:30 Hanna The Pike greets children11:00 Nature film Eastern Gulf of Finland National Park12:30 Hanna The Pike greets children13:00 Waterfall is running in the carp tank14:00 Hanna The Pike greets children15:00 Diver feeds the fish in the Baltic Sea […]
