To the west, close to the banks of the Kladeos River, is the Gymnasion  where athletes were privileged to exercise and take final training for the Games. Today one can wander in and out of the ruins of those buildings; and can sit where athletes disrobed oiled and washed themselves; and walk where they practiced.

Large rectangular building with central court, enclosed by doric colonnade. It was training area for practice in foot race, javelin and discus throwing. A monumental vestibule ("propylon") was added to the SE corner of it at the end of the 2nd cent. B.C.
 

                                                                                                          Gymnasion model