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Maretarium: A Window into Finland's Aquatic World

Discover Finland's underwater world at Maretarium, Kotka: home to 60 native fish species in a unique aquarium experience.

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The Maretarium in Kotka offers a unique glimpse into Finland's underwater ecosystems. With over 60 native fish species in 22 themed aquariums, it's an engaging and educational experience for all ages, showcasing the diverse aquatic life of Finnish waters.

A brief summary to Maretarium

  • Monday 10 am-5 pm
  • Tuesday 12 pm-7 pm
  • Wednesday 10 am-5 pm
  • Thursday 10 am-5 pm
  • Friday 10 am-5 pm
  • Saturday 10 am-5 pm
  • Sunday 10 am-5 pm

Local tips

  • Check the Maretarium website for the schedule of diver feedings in the Baltic Sea tank for a unique viewing experience.
  • Allow at least 1.5 hours to fully explore all the aquariums and exhibits.
  • Visit during different seasons to see the fish exhibiting natural spawning behaviors.
  • Combine your visit with a trip to nearby Katariina Park for a relaxing stroll.
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Getting There

  • Walking

    Maretarium is located in Kotka city center, near Sapokka Water Garden. From the central bus station, walk east along Keskuskatu, then turn right onto Sapokankatu. The aquarium will be on your left in a few minutes. This walk is approximately 10-15 minutes. No costs involved.

  • Public Transport

    Local buses in Kotka, operated by Jonne & Minne, serve the Maretarium area. Check the Kotka Region Journey Planner for the most up-to-date schedules and routes. A single ticket within Kotka (Zone A) costs approximately €3.30. From the Kotka railway station, take any bus that stops near the Kotkan tori (market square) and walk for 5 minutes.

  • Taxi

    A taxi from the Kotka railway station to Maretarium is a short ride, approximately 2 kilometers, costing around €10-€15. Taxi stands are available at the train station.

  • Parking

    If driving, parking is available near Maretarium. Free parking can be found at Juha Vainion katu. Alternatively, paid parking is available at P-Pasaatin Toriparkki, with rates starting at €1.10 for the first hour. Sokos Hotel Seurahuone Kotka also offers parking for €15/day.

Unlock the Best of Maretarium

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Discover more about Maretarium

Maretarium, officially Kotka Maretarium, opened its doors in 2002 as a public aquarium dedicated to showcasing Finland's native fish species and aquatic environments. Located on the shores of Sapokanlahti bay in Kotka, it's a collaborative project between the City of Kotka, the University of Helsinki, and the Game and Fisheries Research Institute. The Maretarium features approximately 60 permanent fish species native to Finland, displayed across 22 themed aquariums. The largest of these is the Baltic Sea Pool, a cylindrical basin holding 500,000 liters of water with a high glass wall that serves as part of the Meriteatteri maritime theater. Visitors can observe the fish adapting to the Finnish seasons, with spawning times varying throughout the year. Beyond the aquariums, Maretarium offers a comprehensive experience with exhibits on fish research, a nature school, and a souvenir shop. The Meri Café Kristina provides refreshments, making it a destination for the whole family. The aquarium also focuses on educating visitors about Finnish aquatic nature and water protection. Occasional diver feedings in the Baltic Sea tank offer a special viewing opportunity. Maretarium is committed to sustainable tourism, operating as a responsible destination. With its diverse exhibits and educational focus, Maretarium provides an engaging and informative experience, revealing the often-hidden treasures of Finland's underwater world.

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