The park is made up of Guinea–Congo lowland rain forest, which includes areas of swamp-forest, high forest, secondary forest, and open scrub.

Common trees are Kapok, Celtis zenkeri, Triplochiton scleroxylon, Antiaris africana, Pycnanthus angolensis, Alstonia congoensis etc.

The park is probably the best example of mature secondary forest in southwest Nigeria that is home to a number of forest elephant and buffalo, as well as a large variety of primates including a small (and very wary) troop of chimpanzees. It is also home to over 700 different butterfly species.

The park has two treehouses, one 140 feet high in a silk-cotton tree, from which visitors can view the park from above and observe bird life.

The treehouse is the most intriguing feature anyone is likely to see in the park. The houses are additional pep to visitors gaining a vintage spot from where to relax and savour the beauties of nature that the park present.

The Treehouse has a base with some measure of space and platform to sit on while contemplating how to conquer the 140 feet height.

With over 200 species of birds recorded at the park, Okomu National Park is very rich in birdlife. These include Angolan Pitta, Grey Parrot, Wrinkled Hornbill, Fish Eagle, Hawks and woodpeckers.

You can also find Great Owl, Grey Hornbill, Cattle Egret, Black-casqued Hornbill, Yellow-casqued Hornbill, Sabine’s Spinetail, Cassin’s Spinetail and Black Spinetail.

Other species include White-breasted Negrofinch Chestnut-breasted Negrofinch, Pale-fronted Negrofinch and Yellow-throated Cuckoo etc. The bird hide enables avid bird watchers snipe at unaware avifauna that are wading through the pool overlooked by the hide or foraging within the vicinity.

The park is accessible to tourists, and has well marked trails for visitors.

Visitors can stay at chalets built on stilts, just outside the park entrance, surrounded by big trees that are often occupied by Mona monkeys.

Guides are available for forest walks, and will point out such things as termite nests and the many medicinal plants that can be spotted all over the Okomu forest.

It is home to endangered forest Elephants and one of the rarest monkeys in the world, the White-throated monkey is one of the few remaining pristine rainforest areas in southern Nigeria.

The Okomu River which flows across the length of the park as well as the Arakhuan stream provide visitors opportunity to engage in water sports such as fishing, boating / canoeing and other water related activities.

Located within the Okomu National Park, Okomu Ecotourist Resort is well appointed with comfortable chalets, high class catering and bar service and a swimming pool for visitors comfort.

Situated within the lush rainforest, visitors will be able to relax to the sounds of nature or if you feel adventurous, you can explore the National Park to look out for the many animals and birds that can be found here.

Swimming pool is located at the A.P Leventis Conservation Centre at Arakhuan and it also houses artifacts and other basic materials including information about the park numerous offerings. The resort services are provided through public private partnership with private investors.

The modern tourist facilities have 12 chalets and 3 family apartments cosy restaurant and a mini conference centre. The catering services are both continental and African cuisines.