The bright blue, inflatable plastic membrane acts mainly as a playground and exercise ground for children.

Arteplage
Yverdon-les-Bains

_{^{Photos: © Philipp Zanatta; ETH-Bibliothek Zürich, Bildarchiv / Fotograf: Hans-Peter Bärtschi / SIK_03-073534 / CC BY-SA 4.0; are still missing - send us yours! expo.02(at)ex-expo.ch; © Olivier Müller - CC BY-NC-SA 2.0; © Joseph Tame - CC BY-NC-ND 2.0; © Isa Stürm Urs Wolf SA, Zürich www.stuermwolf.net}}