East Malaysia is 50% bigger than Peninsular Malaysia at , comparable with South Dakota or Great Britain. East Malaysia contains the five highest mountains in Malaysia, the highest being Mount Kinabalu at 4095 m, which is also the highest mountain in Borneo and the 10th highest mountain peak in Southeast Asia. It also contains the two longest rivers in Malaysia – Rajang River and Kinabatangan River. Banggi Island in Sabah and Bruit Island in Sarawak are the two largest islands that are located entirely within Malaysia. The largest island is Borneo, which is shared with Indonesia and Brunei. The second largest island
Geography of Brunei Geography of Brunei Brunei is a country in Southeastern Asia, bordering the South China Sea and East Malaysia. Its geographical coordinates are . Brunei shares a border with Malaysia and has a coastline. The climate in Brunei is tropical equatorial and humid subtropical at higher altitudes with heavy rainfall. Bandar Seri Begawan's climate is tropical equatorial with two seasons. Dry season is extremely hot (). Wet or rainy season is generally warm and wet (). Most of the country is a flat coastal plain with mountains in the east and hilly lowland in the west. The lowest point is at