3 Days 2 night’s safari to Mikumi national park northern border of Africa’s biggest game reserve – the Selous – and is transected by the surfaced road between Dar es Salaam and Iringa. It is thus the most accessible part of a 75,000 square kilometre (47,000 square mile) tract of wilderness that stretches east almost as far as the Indian Ocean.The open horizons and abundant wildlife of the Mkata Floodplain, the popular centrepiece of Mikumi, draw frequent comparisons to the more famous Serengeti Plains. Mikumi National Park Details.