Nausicaá, Boulogne-sur-Mer, France

Nausicaá is Europe’s largest aquarium and a unique center of scientific discovery. For visitors, it’s a mesmerizing journey into the underwater home of more than 1,600 marine species. Dive through a massive wave as an escalator takes you to the depths of the sea and then rise to the surface in a submarine-like capsule elevator.


  • Location: Boulogne-sur-Mer, France
  • Building extension inaugurated: 2018
  • Exhibition area: 10,000 sqm
  • Building type: Aquarium
  • Number of marine species: 1,600
  • Number of visitors annually: 874,000 (2018)
  • Building owner: Boulonnais conurbation
  • Architect: Jacques Rougerie
  • Contractor: VINCI Construction


  • Create an immersive underwater experience for visitors to the extended aquarium
  • Ensure smooth people flow for up to one million annual visitors to the aquarium
  • Synchronize the different digital and physical elements of the aquarium journey for a unified visitor experience


  • Integrate the escalator journey with the experience
  • Custom-design elevators that look and feel like underwater capsules
  • Synchronize elevator movements and pace of travel with video material


  • 3 KONE TranSys™ 5-tonne elevators
  • 1 KONE TravelMaster™ escalator
  • 2 KONE TranSys™ freight elevators
  • 3 KONE MonoSpace® elevators
  • #Europe
  • #Modernization
  • #Special buildings

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