Madai Caves

Madai Caves is a limestone system in Kunak with interconnected chambers, some reaching heights of around 100 meters. Natural openings allow sunlight to filter into the interior spaces, creating a mix of illuminated sections and darker passages.

Excavations revealed human settlements dating back 30,000 years, with stone tools and food remains indicating long occupation. These early inhabitants make this one of the region's most ancient inhabited sites.

The Ida'an community has harvested swiftlet nests from the ceiling here twice yearly, a practice that remains central to local livelihoods today. Visitors can observe the traditional techniques using rattan ladders and bamboo poles that collectors employ during nesting seasons.

Visit during the dry seasons from January to March or July to August for the easiest exploration of the caves. Allow time to move through the various chambers and take advantage of natural light entering through the openings.

An unexpected feature is a river passage in the lower sections, a geological formation rarely seen in other Malaysian caves. This creates an unusual environment where water and rock formations interact in striking ways.