The Strait of Johor is a narrow waterway that separates the southern tip of Peninsular Malaysia from the island of Singapore. It connects the South China Sea to the Strait of Malacca, making it an important route for maritime trade and navigation in Southeast Asia. The strait is approximately 22 kilometers long and varies in width, with its narrowest point being around 0.8 kilometers. It is also home to various marine life and ecosystems, contributing to the region's biodiversity. The strait plays a crucial role in the economic activities of both Malaysia and Singapore.