Our proposal is to take the idea of ‘boulders’ produced by Walltopia and re-interpret them as architectural objects. These objects are squished and nested into a multi-layered enclosure, creating three-dimensional external and internal climbing surfaces with both hard and soft features. The inner liner surface is articulated with computational tattoos, implying systems of climbing holds and routes. The result is a space which is abstract and alien, but also discernable as a contemporary climber’s paradise.