The music includes the playing of a rebab (a stringed instrument), accompanied by one or more musicians singing.

(g) including nine small offshore islands, the largest being Pulau Aua Gadang (69 ha).

Marak Island is 7.37 kilometres from Nagari Sungai Pinang land which 500 hectares area has used as Siamang (Symphalangus syndactylus) and Owa ungko (Hylobates agilis) rehabilitation center complete with quarantine, medical, social and rehabilitation cages since 2003.

The plan is to release some Siamang which have could use upper room with sufficient activities, not depend on human anymore and match with his/her spouse to Bukit Tiga Puluh National Park.

The island is now home for 30 butterfly species and 50 kinds of birds, and is suitable for a conservation area.