Redacted: , six child welfare organisations leased an area in the middle of a recreational zone in , consisting of two parks, to establish an amusement park. , the lease was granted for three years. , in , the city extended the lease and allocated 5.37 hectares (13.3 acres) for the park. the city plan approved in , the amusement park was further expanded to over 7.2 ha (18 acres). , the welfare organisations formed the non-profit ' , which continues to manage and develop the amusement park