The light installation een Spoor van Water - a Trail of Water is situated in a railway overpass in the Dutch city of Assen.

Every train that passes activates a unique light composition, incorporated into the overpass's pavement and planting: a waterfall of light that crashes down over its concrete and meanders over its overgrown slopes.

Situated in a historic creek bedding, a Trail of Water connects the natural flow of water to the site's contemporary urban traffic flows.