This geosite lies atop a marine abrasion platform encircling the island. It is the only geosite in Labuan characterised by limestone formed from ancient coral reefs.
The landscape of this geosite sits on a marine erosion platform surrounding the island. Pulau Burong is the only geosite in Labuan characterised by limestone formed from coral reefs. It features an extensive reef flat with a relatively limited land area. According to earlier studies (e.g. Wilson, 1964), the island once exhibited limestone landforms such as pinnacles and caves.
Pulau Burong is also reported to be rich in archaeological heritage, including human remains and porcelain artefacts dating from around 900-1500 A.D. of the Tang, Song, and Ming Dynasties (Wilson, 1964). In the past, limestone from the island was quarried for the construction of the Labuan Airport.
River channel deposits from approximately 15 million years ago, part of the lower Belait Formation. Fresh outcrops exhibit near-horizontal thick sandstone layers. A scenic and diverse coastal landscape with alternating sandy and rocky shorelines, featuring sea caves and arches in several locations.
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Thickly bedded sandstone layers representing ancient tidal-influenced river channels. Abundant shallow marine trace fossils such as Ophiomorpha isp. and Teichichnus isp. are visible. Exceptionally well-developed tafoni (honeycomb weathering structures) formed by salt spray from the sea, creating intricate voids on coastal rock surfaces.
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Exposing high-quality, fresh rock surfaces showcasing large-scale cross-bedding with embedded coal fragments, a unique feature not recorded elsewhere in Malaysia. Characterised by a broad tidal flat displaying current and wave ripple structures at low tide, with visible Belait Formation strata extending offshore toward Pulau Ular, and a natural sea arch sculpted by wave erosion.
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