Located on Vassivière Island on Lake Vassivière, France, OTRO is a completely skateable sculptural work designed by Koo Jeong-A, for the International Center of Art and Landscape situated there. Composed of several bowls, a cradle and three tunnels, Koo Jeong-A invites novices and experts to share the physical and sensorial experience of her work by “skating the landscape”. The concept of OTRO, its ovoid shape, the use of green phosphorescent concrete, its progressive discovery, and its integration in the island meadow make this artwork become a site of infinite investigation that reflects all details like the light, its link with the site, the atmospheres, the dream and the fantastical. OTRO is an artwork made of bumps, referring to both definitions of sculpture and representation: hollows and bumps, shadows and lights, soft or accentuated reliefs. It establishes the link between the urban, practicable, sporting and playful aspect of the artwork as a skate park and the artwork from an artistic point of view as part of Koo Jeong-A’s world. L’Escaut Architects acted as technical coordinators on the project.