The park ranges from sea level to an altitude of 981 m.[2] It contains the Aopa peat swamp, the largest in Sulawesi,[3] and is recognised as a wetland of international importance.

In the park, 323 plant species have been recorded, including Borassus flabellifer, Bruguiera gymnorhiza, Callicarpa celebica, Cratoxylum formosum and Metrosideros petiolata.

Birds in the park include the maleo, lesser adjutant, Asian woolly-necked stork, collared kingfisher, Yellow-crested cockatoo, vinous-breasted sparrowhawk, Sulawesi black pigeon and Nicobar pigeon.

During the Dutch colonial era, there were 7 villages within the area of the current national park.

[4] The national park was declared in 1989,[2] and in 2011 it was designated as a Ramsar wetland of international importance.