It was the first high school in the Territory of New Guinea, beginning life as an institute for the training of teachers.

About 50–60% of its students come from the Islands Region of the country, with the rest from the mainland provinces.

The school offers the following subjects: language and literature; applied English; general and advanced mathematics; chemistry; biology; physics; applied science; geology; economics; accounting; business studies; legal studies; history; geography; and information and communication technology (ICT).

[1][2] In 2011 the school suffered temporary closure for a variety of reasons, including alleged cult activities and satanic worship, fights and other social problems, and deteriorating school facilities, together with allegations of misuse of funds for their rehabilitation, with particular allegations being made about the businessman, Eremas Wartoto.

Tuum Est: The Early History of Keravat National High School and Its Students 1947-1986.