Where is the world’s largest known cave chamber?

Sarawak Chamber is located in Gunung Mulu National Park on the island of Borneo, in the Malaysian state of Sarawak. It is widely regarded as the largest known cave chamber in the world by volume, measuring hundreds of meters across and around 80 meters high in places. The chamber formed in limestone through long-term cave collapse and erosion processes. It can fit multiple football fields and remains one of the most impressive underground spaces ever discovered. Gunung Mulu National Park is a UNESCO World Heritage Site, known for caves, karst formations, and biodiversity.