Impalila Island is one of the best islands in Namibia and lies in the middle of the Zambezi River, about 25 minutes from the confluence of the Chobe River. The island is inhabited and there are many small fishing and farming villages complete with schools, churches, and tiny shops. As many people come to the island from Botswana there is a small immigration office in a hut on the south side of the island. The island interior is forested with baobabs, water figs, knobthorn, mopane, pod mahogany, and star chestnut trees. On the river banks, you find jackal berries and the Chobe water berry tree. In the middle of the island, there is a particularly old and large baobab tree that is possible to climb (however, this is extremely dangerous as the 'ladder' consists of nails sticking out of the tree trunk and there are no safety ropes — it is entirely at your own risk). If you make it to the top you can see the point where the four countries of Botswana, Zambia, Zimbabwe, and Namibia meet.

Surrounding Impalila Island, the area is similar to that found in the northern part of the Okavango Delta where deep water channels are lined with papyrus and there are quiet lagoons covered in waterlilies. While elephants and buffalo are sometimes seen near and on the island, they are more commonly seen beside the Chobe River. Hippos and crocodiles can be seen in the waters and there is spectacular birdlife. African skimmers nest on the exposed sandbanks and reed cormorants dry their wings on the papyrus while various kingfishers hover about the water to find food.

Location: Eastern tip of Namibia, bordering Botswana, Zambia, and Zimbabwe.

Mercury Island is among the best islands in Namibia and is situated 800 meters offshore in Spencer Bay, 110 kilometers north of Lüderitz. The island is only 750 meters long (North-South) and about 270 meters wide, reaching a height of 38 meters above the sea. Steep, rocky, without vegetation, covered in a thick layer of bird guano, and riddled with a number of caves (one of which completely bisects the island), Mercury Island's name comes from the shaking that reverberates through the island during westerly wave action. Its nearest neighbor and bird habitat are Ichaboe Island, about 65 kilometers to the south. Ichaboe and Mercury are the two most important island seabird breeding sites along the Namibian coast. Today the island has a permanent population in the form of a two-person bird research station. The station sits on the remains of a bird guano mining dock on the northeast side of the island.

Mercury Island has importance to wildlife. It is home to 16000 penguins, 1200 gannets, and 5000 cormorants, which range tens of kilometers out to sea and return to the island to breed. Birdlife International considers Mercury Island as an Important Bird Area (IBA). Indeed the four Namibian islands of Mercury, Ichaboe, Halifax, and Possession are critical for the breeding of a number of rare or endangered species of birds including the Cape gannets Morus capensis, the endangered African penguin Spheniscus demersus, and the crowned cormorants Microcarbo coronatus. Approximately 80% of the global population of the endangered bank cormorant Phalacrocorax neglectus breeds on Mercury Island and in the Ichaboe Islands. Migrating whales such as humpback whales and recovering southern right whales also visit the island during wintering seasons. There is a dwelling on Mercury Island, which is frequented by scientists and conservationists monitoring wildlife in the area.

Location: Atlantic Ocean

Seal Island is a South Atlantic rock island in the northern Lüderitz Bay in Namibia and part of the Penguin Islands. It is one of the best islands in Namibia. The island is located 950 meters north of the penguin island. One kilometer northeast of Seal Island is the two-hectare flamingo island, which is no longer counted among the penguin islands and which is only 50 meters away from the mainland. The island is 1,300 meters long and up to 540 meters wide. The area is 0.44 square kilometers. This makes Seal Island the second largest of the Penguin Islands after Possession Island. In a rounded dome, it reaches a height of 43 meters. Many species of seals live on the island. But penguins, South African fur seals, and seagulls also populate the island. The island is part of the Meob-Chamais marine reserve.

On Seal Island, you can Snorkel with the seals you will find they swim around you, going about their business without concern for your presence. They are not at all tame or trained but are inquisitive and if you’re lucky they may decide to play in the water with you. However, the animals’ welfare is always the top priority for the snorkel team which is involved in a number of research projects and other initiatives designed to encourage these beautiful animals to thrive.

Location: Penguin Islands, Namibia.

Possession Island is the largest of the Penguin Islands and is one of the best islands in Namibia. It is a scattered group of islands to the south of Namibia. It is the largest among the country's coastal islands, with an area of 80 hectares, and is located 1.6 kilometers away from the Diamond Coast and 40 kilometers to the south of Lüderitz, on the Lüderitz Bay.

Possession Island features arid and rocky ground, with occasional shrubbery and low vegetation where some species of birds nest, the African penguin among them. In the 1950s, the island had the largest population of African penguins in Namibia, with around 46,000 adults; however, by 2001, only 2,000 remained. In 2008, a report published by WWF South Africa estimated around 1,400 penguins remained, with a continued decline of around 8% a year being observed in their numbers. For several years, the island was a guano collecting spot, and therefore had a small population consisting of some people in charge of collecting the product. The island was also known, in the 18th century, as Thompson's Island.

Location: Karas Region, Namibia.