The Ultimate U.S. College Preparatory Experience. International Junior Golf Academy (IJGA), an American Boarding + Day School, Grades 7 - 12. The IJGA Lifestyle Program @ Heritage Academy is a unique educational experience. We offer the U.S. boarding school experience living on the first-class IJGA campus, partnering with the very best junior golf & tennis coaches and offering world-class education at Heritage Academy, located on beautiful Hilton Head Island. More