an in - line , all terrain skate apparatus for retrofit to a conventional ski boot . the skate apparatus generally comprises a frame member having front and back ends and defining a longitudinal axis extending between the front and back ends . rotatably connected to the frame member are a plurality of wheels which are disposed in horizontal , linear alignment . rigidly connected to the front end of the frame member is a toe connector which is sized and configured to receive a toe portion of the ski boot and rigidly secure the toe portion to the frame member when the toe portion is inserted thereinto . pivotally connected to the rear end of the frame member is a heel connector which is sized and configured to be engageable to a heel portion of the ski boot and releasably secure the heel portion to the frame member when engaged thereto . the heel connector is adapted to be pivotally secured to any one of a number of pairs of corresponding apertures so as to allow the heel connector to be selectively positioned along the longitudinal axis of the frame member .