One of the last news within water games is constituted by a channel built up in hand stratified fibreglass, of black colour. The pipe has a 1250 mm diameter and is composed by two assembled half shells. The descent inside the Black Hole is performed through one or two people rubber rings. The feelings transmitted by this game are many. First of all there is a dark atmosphere for light lacking; the only light source that can be found during the descent is created by luminous effects that can be: optical fibres, stroboscopic lights, light stars that are placed/installed along the route.