- The Straits of Malacca is a 500 nautical mile (926 km) southeasterly sea passage located between Sumatra and the Malay Peninsular, which allows access between the Indian Ocean and the South China Sea.
- It is an important sea lane for world trade. The island State of Singapore is located at the southern mouth of the Straits.
Singapore Strait
- The Singapore Strait lies between the Straits of Malacca and the South China Sea. It is 71 miles (114km) long and 10 miles (16km) wide.
- Singapore lies on the north of the Channel and the Riau Islands of Indonesia lie to the south.
Rondo Island
- Rondo Island is located 31 miles (50km) north of the Indonesian Island of Sumatra.
- To the north of Rondo lies an International Sea Lane for vessels passing between the Indian Ocean and the Straits of Malacca.
Straits of Malacca