The lake was formed as a direct result of open-pit gold mining operations conducted by the Bau Goldfields company.
The site was historically part of the intense gold rush in the Bau district, which attracted thousands of miners in the mid-1800s.
The turquoise coloration is primarily due to the suspension of fine mineral particles and the depth of the flooded pit.
The limestone karst formations surrounding the lake are part of the Serian-Bau geological formation, rich in fossils.
The area was previously known as the 'Tasik Biru' or 'Blue Lake' long before it was developed into a formal public park.
Tasik Biru in Bau, Sarawak, is a former gold mine pit that has transformed into a lake featuring distinctively turquoise-colored water. The high mineral content and reflection of the surrounding limestone hills contribute to the water's characteristic hue. The site is managed as a recreational park, offering paved walking paths around the water's edge. It serves as a historical landmark of the region's 19th-century gold mining industry. Visitors can observe the contrast between the deep blue water and the steep, rugged cliffs of the abandoned mine walls. The site remains a popular local destination for weekend relaxation and lakeside strolling.
The elevated viewing deck overlooking the lake, which captures the contrast between the turquoise water and the surrounding limestone hills.
Wear footwear suitable for walking on uneven paved surfaces.
Bring sun protection as there is limited natural shade along the immediate lake perimeter.
Visit during the dry season to see the water at its most vibrant turquoise color.
Do not attempt to swim or enter the water, as the depth and mineral composition are not suitable for public swimming.
Maintain a quiet demeanor to respect the local recreational atmosphere and do not swim in the water.
