Authorizing the Commissioner of Public Property, on behalf of the City, to acquire fee simple title or a lesser interest in real estate, by purchase, dedication, donation, condemnation, agreement in lieu of condemnation, or otherwise, in certain parcels of land along the Schuylkill River and the Wissahickon Creek together with all improvements thereon and all associated easements and appurtenances, for public recreational purposes, all under certain terms and conditions.