Any corporation, board, or body hereinbefore designated given charge of the recreation program is authorized to conduct its activities on:
(1) property under its custody and management;
(2) other public property under the custody of any other public corporation, body, or board, with the consent of such corporations, bodies, or boards;
(3) private property, with the consent of its owners; and
(4) shall have authority to accept gifts and bequests for the benefit of the recreational service and employ directors and instructors of recreational work.