 During the 1960s, the school also opened to dependents of island residents on a tuition basis.With the closing of Lago in 1985, the parents of the remaining students formed the International School of Aruba (ISA), a non-profit Foundation, to continue English language education on the island.In March 2004, the Board of Directors passed the governance and ownership of ISA to International Schools Services (ISS), a not-for-profit organization of Princeton, New Jersey.