With Chinese students flocking to schools overseas, students from other countries are, in turn, spending their summer vacations in China to prepare for college entrance tests.

Lower costs and a break from their daily routines are among factors attracting them, as well as the academic atmosphere of classes that focus on improving college entrance exam results.

According to New Oriental School, China's largest private education institution that prepares students for foreign college entrance exams such as the GRE and SAT, 90 percent of students in June who took SAT courses in Beijing were from overseas.