Blue Lagoon (Pantai Tanjung Biru)

Blue Lagoon, locally known as Pantai Tanjung Biru, is a small sheltered beach on the Tanjung Tuan cape near Port Dickson in Negeri Sembilan, Malaysia. Located about 10 kilometres south of Port Dickson town, it is known for its calm blue-green waters, sandy cove framed by rocky headlands and casuarina trees. The beach is popular for swimming, picnics and photography, and serves as a gateway to the nearby Cape Rachado Lighthouse and forest reserve.

Visitors can expect a small curved sandy bay sheltered by rocky headlands and casuarina trees with calm, shallow waters. The beach area is open and public with basic amenities, food stalls and parking nearby. Activities are centred on swimming, wading, picnicking and photography. The surroundings include forested slopes of Tanjung Tuan and views toward the Strait of Malacca, with access to coastal trails leading to Cape Rachado Lighthouse.