Oyala Thumotang National Park, Nature reserve in Queensland, Australia

Oyala Thumotang National Park covers 381,000 hectares from the McIlwraith Range foothills east to the Archer River, about 25 km north of Coen. The Archer and Coen rivers cross open eucalypt woodlands, melaleuca swamps and rainforest patches; dense tropical rainforest grows on the eastern slopes, while vine thickets line the western watercourses.

The park was first gazetted as Archer Bend National Park, later renamed Mungkan Kandju and, in 2012, Oyala Thumotang. Its creation is tied to Koowarta v Bjelke-Petersen, decided by the High Court of Australia, a case brought by John Koowarta over the Wik Mungkan people's land. The park now lies on the traditional lands of the Wik Mungkan, Southern Kaanju and Ayapathu peoples and is managed with Queensland as Cape York Peninsula Aboriginal Land.

The park lies on the lands of the Wik Mungkan, Southern Kaanju and Ayapathu peoples, and since 2012 it has been managed jointly by local Aboriginal owners and the Queensland parks service under the Cape York Peninsula Aboriginal Land (CYPAL) status. The name Oyala Thumotang replaced Mungkan Kandju, itself preceded by Archer Bend.

The park requires a four-wheel drive vehicle to reach, as the access roads are unpaved and can be rough depending on the season. Bring your own drinking water since supplies are limited once you are inside the reserve.

The Archer River flows through the park in a single deep channel lined with dense myrtle scrub, making it different from the branching waterways seen elsewhere in the region. This unusual pattern shapes how water moves through the landscape during different seasons.