Malolotja is 180 square kilometres of highveld grassland in northwestern Eswatini that has never been ploughed, and it is walked with nothing between you and the animals. No lion, elephant or rhino live here, so blesbok, eland, zebra and mountain reedbuck are met at eye level rather than through a car window. They watch you come, hold their ground, then drift off. More than two hundred kilometres of trail cross the reserve, and seventeen wilderness camps are scattered along them. Each is just a place beside a river: no hut, no tap, no toilet. You carry everything in and spend two to seven days walking between them. The country's highest waterfall drops about ninety metres into a gorge that no road reaches. You earn it with a steep descent, sit alone at the bottom with the mist coming off the rock, and then climb the whole thing back out.
On the Ngwenya ridge inside the reserve is Lion Cavern, where people dug red ochre out of the hill about 48,000 years ago — the oldest known intensive mine anywhere. The ore they wanted is rust: iron that stayed dissolved in an early ocean with no oxygen in it, then dropped out as bands of rock when the first free oxygen arrived. Those bands are now tilted up into the ridge, and a modern iron mine came for the same seam three billion years later, cutting away the rock around the ancient workings. In the Silotshwane gorge eleven platforms are bolted into the trees above the Majolomba river, linked by ten cable runs and a suspension bridge, so you cross the gorge from the inside at treetop height. The grassland is not kept by being left alone. Rangers set fire to blocks of it on purpose, because highveld grass left alone grows rank and tall, and the short-grass birds and grazers lose the open sward they need. Fire resets it, and the lilies, orchids and red-hot pokers come up through blackened ground weeks after it cools.