Four islands make up the Mentawai cluster of the West Sumatra
coast: Siberut, Sipora, Pagai Utara and Pagai Selatan. The people
of these islands still live in comparative isolation, maintaining
their age-old ways. Siberut is well known for its untouched forests;
a part of a nature reserve inhabited by a number of animal species
not found anywhere else, among them some rare monkey species.
Beautiful coral reefs are found offshore.