Lake Victoria is shared by three countries: Uganda, Tanzania, and Kenya, with the majority of its area belonging to Uganda. The Nile River is considered the longest river in the world, stretching approximately 6,650 kilometers (4,130 miles) from its source at Lake Victoria to its delta in Egypt, where it flows into the Mediterranean Sea. The river has two main tributaries, the White Nile and the Blue Nile. The White Nile, which originates from Lake Victoria, contributes about 15% of the Nile's total water flow. It is named after its milky-white color caused by suspended sediments and minerals. The river flows northward through Uganda, South Sudan, Sudan, and eventually merges with the Blue Nile in Sudan's capital city, Khartoum. The Blue Nile, originating from Lake Tana in Ethiopia, contributes about 85% of the Nile's total water flow. It gets its name from the dark blue color it appears due to the large volume of silt it carries. The Blue Nile travels through Ethiopia and joins the White Nile in Khartoum before continuing its journey northward towards Egypt.

The Nile River has played a significant role in the history and development of ancient civilizations along its banks. In Uganda, it has been a vital waterway for transportation, irrigation, and fishing. It supports diverse ecosystems and is home to various species of fish and wildlife. Tourism along the Nile in Uganda is also popular, with activities such as boat cruises, fishing trips, and visits to the Murchison Falls, where the river plunges through a narrow gorge. Exploring the source of the Nile at Lake Victoria is a major attraction for visitors to Uganda. Overall, the source of the Nile in Uganda is a fascinating natural wonder and a significant part of the country's geography and history.