Rubondo Island National Park was gazetted in 1977. It is an important breeding ground for both migratory birds and fish species (especially Tilapia and Nile perch) as for a long time it stood to be the only area in the waters of Lake Victoria which was well protected and preserved.
About 80% of the park is covered by a dense forest thus providing a variety of habitats to wildlife ranging from savannah, open woodland, papyrus swamps to dense forest. These habitats form a home for various wild creatures such as sitatunga, bushbucks, vervet monkeys, genet cats, spotted-necked otters, hippopotamus, and crocodiles which share the ecological niches with introduced species such as chimpanzees, elephants, giraffes, black and white colobus monkeys, suni and African gray parrots.
The park is located on the south-western corner of Lake Victoria in Geita region about 150 km (95 miles) west of Mwanza city. The Lake (Victoria) is the second largest lake in the world. The Lake is also the source of the longest river in the world, River Nile.
The park has 456.8 km2 of which 236.8 km2 is dry land and 220 km2 is water comprising of 11 small islets of varying sizes.