Itäkeskus swimming hall, Underground swimming center in Itäkeskus, Finland.
Itäkeskus swimming hall is a large underground swimming facility located in a district of Helsinki. The venue offers a 50-meter pool, children's pool, water slides, diving boards, several saunas, jacuzzi, and a steam bath.
The facility opened in 1993 as Helsinki began expanding its underground infrastructure to manage urban growth. Building within solid bedrock was a new approach for the city to create space beneath its dense neighborhoods.
The facility sits deep below ground within Helsinki's rocky landscape, making it a distinctive part of the city. Visitors experience the place as a regular swimming destination today, though the subterranean setting creates a particular quality to the visit.
The facility is easily accessible with wheelchair-friendly entrances, changing areas, and locker space for visitors. Massage services are available on site and can be arranged in advance.
The facility serves a hidden second purpose beyond daily recreation: it can house thousands of people during emergencies and functions as an underground shelter for the city. This dual design shows how Helsinki integrates emergency preparedness into everyday structures.
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