Traders' Cave (Gua Dagang)
A smaller cave chamber used historically by bird's nest harvesters as a staging point. Simple wooden structures remain from the harvesting operations.
Traders Cave (Gua Dagang) is a small but historically significant cave situated at the base of the Great Niah limestone massif, visible from the boardwalk trail shortly before the main cave entrance. The cave served for centuries as a trading and processing station for the bird's-nest industry — the point where collectors emerging from the Great Cave with their harvest would weigh, clean, grade, and sell the nests to traders who transported them by river to coastal ports and eventually to Chinese markets.
The wooden floor structures and plank-framed drying racks inside the cave were still partially intact when researchers documented the site in the mid-20th century. Grading bird's nests was skilled work. Nests were sorted by colour — white nests being the most valuable, black nests bound with feathers fetching only a fraction of the price. They were then cleaned of debris and weighed in standardised measures of catties (one catty ≈ 600 grams). Historical records from the late 19th century describe Niah's annual nest harvest at tens of thousands of catties.
The bird's-nest harvesting tradition continues at Niah under licensed concessions held by families whose rights predate the park's establishment in 1974. The tension between conservation and heritage rights is one of the defining management challenges at Niah. Park rangers enforce the rule that nests containing eggs or live chicks cannot be taken, but enforcement inside the cave during harvest sessions is genuinely difficult given the scale of the structure and the darkness in which collectors work.
Visitors today see Traders Cave from the boardwalk approach rather than entering directly. A small interpretive panel explains the nest-harvesting economy and the cave's role in it. The wooden structures inside are fragile and fenced off; entry is restricted to licensed concession holders during harvest seasons. The cave is worth pausing at — the historical context it provides for understanding the relationship between the cave swiftlets and the human communities that have depended on them for over a millennium is unique in Borneo.
The cave's name in Malay — "Gua Dagang", literally "trading cave" — is straightforward and descriptive. The Iban language has a parallel term referring to the same activity, reflecting the cave's role as an intersection point between coastal trading networks, riverine transport routes, and the interior hunter-gatherer communities who originally established the bird's-nest harvest. The complex history of this site is captured well in the displays at the Sarawak Museum in Kuching, which holds artefacts excavated from the cave and the adjacent main cave complex.