The station comprises a tub suited to be filled with water and shaped to receive a user partially immersed therein, and a gymnastics device comprising a frame receivable within the tub and supporting a seat and a revolving pedal crank that is arranged in front of the seat. The pedal crank is pivotally supported on supports integral with the frame and provided with three hinge seats which are differently spaced from the seat and are selectively engageable by the pedal crank.