A walking safari changes the scale of everything. On foot you notice what the vehicle misses: a fresh leopard track in the dust, termite architecture, medicinal plants the Maasai still use, dung beetles rolling their prize across the path, and the sudden very real sense that you are not at the top of the food chain.
Walks last two to three hours, usually in the early morning, and are led by an armed park ranger alongside your guide. You walk in single file, in muted colours, staying quiet and doing exactly what the ranger says. The aim is not to approach dangerous game — it is to read the bush.
Walking is permitted in specific areas: parts of the Serengeti, the Ngorongoro highlands, Lake Manyara, Arusha National Park, Tarangire and the private concessions bordering the parks. Minimum age is typically twelve to sixteen depending on the area, and the walk must be booked in advance so a ranger is allocated.