This video installation is a reflection about the limits of a landscape. The flow of movement captured in the Reunion Island's waterfalls is trapped in tree monoliths as a triptyque that won't be complete. The space between the rectangles is as empty as it is full of sound and residual lights form the video-projections. The ecotones are the spaces transitioning between two different natural environments, like an evolutive space full of the encounter of two spaces and empty of any empirical line.