They are reserves owned by the government, restricted from most development and set aside for human recreation and environmental protection.
Protection, management and preservation falls under the Department of Wildlife and National Parks in Peninsular Malaysia, in Sabah under Sabah Wildlife Department and in Sarawak under Sarawak Forestry.
The earliest recorded history of Sabah being part of any organised civilisation began in the early 15th century during the thriving era of the Sultanate of Brunei.
Sabah became a protectorate of the United Kingdom in 1888 and subsequently became a crown colony until 1963, during which time it was known as North Borneo.
As of the 2015 census in Malaysia, the state's population is 3,543,500.
Sabah has an equatorial climate with tropical rainforests and abundant animal and plant species.
It is said that 40 Boeing 747 aircraft's fit in the cave.