On Mount Hatu Saka, near the coast of Saleman-Sawai, it is the Goa Hatusaka, currently the deepest cave of the whole Indonesia.

[4] Of the 118 species of bird on the island, 15 are endemic, including the eclectus parrot, purple-naped lory, salmon-crested cockatoo, lazuli kingfisher, sacred kingfisher, grey-necked friarbird, Moluccan king parrot,[4] bicoloured white-eye, Boano monarch,[5] and Seram masked owl.

The mammals found on Seram include Asian species (murid rodents) as well as Australasian marsupials.

The montane area of Seram supports the greatest number of endemic mammals of any island in the region.

The population of the endemic salmon-crested cockatoo is now gravely threatened due to hunting and the destruction of its habitat,[4] and the park remains its last stronghold.