Idjwi, or Ijwi, is an inland island in Lake Kivu that is part of the South Kivu Province. With a length of 70 kilometers and a surface area of 340 square kilometers, it is Africa's second-largest lake island and the tenth-largest in the world. Idjwi is a beautiful island roughly halfway between the Congo and Rwanda, with a distance of 10 to 15 kilometers separating its western shore from the Congo's mainland and a similar distance separating its eastern beach from Rwanda's coastline. The island's southern tip, on the other hand, is only 1 kilometer from a Rwandan shore promontory.

Idjwi Island, formerly a clan-based Bahavu culture, became a kingdom in the late 18th century. In 2013, the island's population was expected to be 252,000 people, primarily Havus with a small Pygmy minority. From an estimated population of 50,000 in 1983, this is a massive increase. Malnutrition is widespread, particularly among youngsters, and practically the whole population is reliant on subsistence farming.

Location: Lake Kivu, South Kivu Province, Democratic Republic of the Congo

Mateba Island is a significant river island located near to the Congo River's mouth. The entire island is in the Democratic Republic of Congo, although the southern riverbank is in Angola. On the island, there are at least two communities, one on the south coast and the other on the north coast.

The Institut Congolais pour la Conservation de la Nature has imported Blue wildebeest, Waterbuck, Burchell's zebras, and even giraffes to Mateba Island. In collaboration with "Wildlife Vets Namibia," the animals were transported from Namibia. Because Mateba Island was once a rainforest reserve, this decision is divisive. And the partially savanne that now exists is because of deforestation. Except for the four giraffes, who died after three weeks of being offloaded due to a lack of Acacia trees such as Vachellia and Senegalia.

Location: Congo River, Democratic Republic of the Congo

Mbamu is a small island in the Pool Malebo, a vast lake formed by the Congo River expansion. The beautiful island is part of the Congo Republic's territory (Congo Brazzaville). Mbamu is a demilitarized zone formed under the neutral administration established in the Franco-Belgian Convention of 1908, when these two countries ruled over territory on both sides of the Congo River as colonial rulers.

The Malebo Pool covers an area of 180 km2. Downriver are two national capitals: Brazzaville, the capital of the Republic of the Congo, is located to the northwest along the river. Kinshasa, the capital of the Democratic Republic of the Congo, is located to the south of the pool and river (Congo-Kinshasa).

Location: Pool Malebo, Congo River, Democratic Republic of the Congo