Cresta Run, theCres‧ta Run, the /ˈkrestə ˌrʌn/ 
a deep, steep path with twists in it which is cut into the ice at st moritz in Switzerland and used for racing in bobsleighs (=a special vehicle with metal blades for riding fast over snow and ice)
a deep, steep path with twists in it which is cut into the ice at st moritz in Switzerland and used for racing in bobsleighs (=a special vehicle with metal blades for riding fast over snow and ice)