Lirboyo is a huge traditional 'pesantren' (Islamic boarding schools) in Indonesia. Located in Kediri, East Java, the boarding school is home to roughly 17,000 students, or 'santri'. It was founded in 1910 by KH Abdul Karim. Its pupils and students spend their days reading the Quran, studying Islamic scriptures and learning Arabic. They have around 20 hours of activities daily, beginning at 4am and finishing at midnight.

Islamic boarding school
A student holds prayer beadsUlet Ifansasti/Getty

Indonesia is the world's largest Muslim nation. Islam is one of six official religions of Indonesia, which also include Hinduism, Buddhism, Catholicism, Protestantism and Confucianism. In 2011, it was documented that approximately 203 million people identified themselves as Muslim, which was 87.2% of Indonesia's total population at the time.

Getty photographer Ulet Ifansasti visited the Lirboyo boarding in East Java and documented the lives of its students.

Islamic boarding school
Students skullcaps are seen hanging on the wall with the Lirboyo founder pictures hanging aboveUlet Ifansasti/Getty
Islamic boarding school
Students learn to write in ArabicUlet Ifansasti/Getty
Islamic boarding school
Students learn Islamic scriptures on the roof topUlet Ifansasti/Getty
Islamic boarding school
A student helps cut his friends hairUlet Ifansasti/Getty
Islamic boarding school
Students listen to their teacher durying their studiesUlet Ifansasti/Getty
Islamic boarding school
Students learn Islamic scriptures on the roof topUlet Ifansasti/Getty
Islamic boarding school
A student smokes as they learn Islamic scripturesUlet Ifansasti/Getty
Islamic boarding school
Students sleep inside their roomUlet Ifansasti/Getty
Islamic boarding school
A foot is seen poking out of a room as a student walks inside the dormitoriesUlet Ifansasti/Getty
Islamic boarding school
Students prepare for a break in their fast during the holy month of RamadanUlet Ifansasti/Getty
Islamic boarding school
A student writes in Arabic as they learn Islamic scripturesUlet Ifansasti/Getty
Islamic boarding school
Students read the Quran at ancestral gravesUlet Ifansasti/Getty
Islamic boarding school
Students break their fast during the holy month of RamadanUlet Ifansasti/Getty
Islamic boarding school
A student looks out of a window from his roomUlet Ifansasti/Getty
Islamic boarding school
Students skull caps are seen hanging inside a roomUlet Ifansasti/Getty
Islamic boarding school
Achmad Saputra, aged 9, looks out of a window from his roomUlet Ifansasti/Getty
Islamic boarding school
Students walk in line after Friday prayersUlet Ifansasti/Getty
Islamic boarding school
A student prepares for night prayersUlet Ifansasti/Getty
Islamic boarding school
Students shoes are seen as they prepare to perform Friday prayersUlet Ifansasti/Getty
Islamic boarding school
Students perform Friday prayersUlet Ifansasti/Getty
Islamic boarding school
Students take part in Friday prayersUlet Ifansasti/Getty
Islamic boarding school
A student after taking a bathUlet Ifansasti/Getty
Islamic boarding school
Students take a showerUlet Ifansasti/Getty
Islamic boarding school
A student writes in Arabic as they are taught Islamic scripturesUlet Ifansasti/Getty
Islamic boarding school
Students attend the islamic boarding schoolUlet Ifansasti/Getty
Islamic boarding school
Students learn Islamic scripturesUlet Ifansasti/Getty
Islamic boarding school
A student walks around the islamic boarding schoolUlet Ifansasti/Getty