I teach at ICS so maybe I can answer your questions.
ICS does not have an international baccalaureate program.
We are an International School
that has an American, Christian Evangelical curriculum.
Each morning school starts with devotions and prayer and every Friday the school conducts a chapel service.
There are fewer than 250 students attending at the moment. However, the student body is fairly diverse. Fifty percent of the student body is American, but we also have Australian, Korean, British, Japanese, Singaporean, and Swedish students.
Most of our students go to American colleges and universities upon graduation.
I should also note that ICS has one of the best basketball programs on the island.