Kołobrzeg's Oceanarium is a compact aquarium attraction in the resort centre, useful for families and for rainy spells on the Baltic coast. It adds an indoor option to a town otherwise built around the beach, promenade, pier, and spa-resort atmosphere.
Do not expect a major public aquarium on the scale of a capital-city institution. Its value is practical and local: a short marine-life stop that can round out a Kołobrzeg day when the weather or travelling group calls for something easy.