The wind organ (windorgel) stands on the Westerschelde dike on the western edge of the Boulevard, exposed to the prevailing weather. There is no plaque and no formal viewing arrangement: you simply walk past, and on a windy day it plays itself.
The notes are low and atmospheric — closer to whale song than music — and on a strong southwesterly the whole structure can be heard from several hundred metres away. One of those quiet, slightly strange public artworks that travellers tend to remember from a trip.