Eventhough some of the local people have converted to Christianity, but their funeral custom and tradition of cave burial still practice till today. Over 1,000 coffins have been stacked in the cave.

According to the local people, the burial ground is about 800 years and the first coffin placed inside the cave belong to a person known as Segama (Minai Silong) and he was believed to be the head or warrior of the Segama people. The only people that can be buried in the cave are from the descendent of Segama. Outsiders who married to the local Segama people are allowed to be buried outside the cave. The entrance to the cave is always locked to avoid intruders.

The coffin is normally made of ironwood (Belian) or other hardwood species such as Selangan Batu. The coffin will be shaped in accordance with the status of the deceased. Normally, the coffin (end part of the lid) will have carving of a buffalo head or crocodile shape to signify the status of the deceased. The local people believed that by burying the deceased in the cave or side of the cliff of higher ground, the deceased's soul would go to heaven. The other reason was to avoid from animals. The preparations of the coffin took 3-7 days. There is no nails allowed. The coffin would be tied with selected rattan and the different knots would carry different meanings.

The corpse will be kept for few days or even months until the entire relative are gathered for the funeral services. About 60% of Segama population still practice this unique way of funeral service.