Exchange arrangement and play area with foldaway exchange arrangement

An alternating arrangement (14) for installation on a skeleton (12) of a playing area (1) comprises a mounting base (142) and a removable frame (144). The mounting base (142) comprises a mounting assembly (1422), which is attached to the skeleton (12), and a guide assembly (1444) coupled to the mounting assembly (1422) and a peripheral side with respect to (124) of the skeleton (12) extends outwardly. The change assembly (144) is connected rotatably and slidably to the guide assembly (1424) and having an upper side (122) of the skeleton (12) detachably engaged to above the upper side of a first position (122) to a second position to move next to the peripheral side (124) by releasing from the upper side (122) and to rotate and to slide along the guide assembly (1424). Thereby, the play area (1) requires no additional space outside of the playing area (1) for storing the change assembly (144) with the exchange assembly (14).