The Straits of Johor is a narrow waterway that separates the southern tip of Malaysia from the island of Singapore. It connects the Johor River to the Singapore Strait, playing a crucial role in maritime navigation and trade in the region. The straits are approximately 20 kilometers long and vary in width, making them an important passage for ships traveling to and from the busy ports of both countries. The straits are also significant for their ecological diversity, supporting various marine life and habitats. The surrounding areas include urban developments and industrial zones, particularly in Johor Bahru, the capital of Johor state in Malaysia, and the city-state of Singapore.