The Nyerere National Park, formerly part of The Selous Game Reserve is enormous, wild and remote. And it has great wildlife – big game, cape hunting dogs, sable, roan, greater and lesser kudu, raptors, ostrich, crocs, hippos etc. But the main point is that this wildlife can be enjoyed in such a variety of interesting habitats within this fabulous place. Most places that are currently accessible have a lot of small informal tracks. This makes it much easier to get reasonably close to the animals you want to enjoy, and there is no sign that this is having a negative impact.
This factor of the many small game viewing tracks is important (and unlike some other National Parks in East Africa) because many a safari visitor has come on safari hoping to witness what they have viewed on TV or social media, not understanding that much of what they view has been filmed by people with off-track privileges. In the Nyerere National Park it is possible to get within a reasonable but respectful distance of wildlife.