Sibebe Rock, just north of Mbabane, is one of southern Africa’s most impressive geological features. This immense, three-billion-year-old volcanic slab, which rises to 1,488m and covers some 16,500ha, is the world’s largest granite dome. Only Australia’s Uluru pips it to the title of ‘world’s largest rock’. The best way to see it is to climb it. On top, you will find a wonderland of sculpted boulders, granite slopes and hidden forest clefts, with trails leading to caves and waterfalls. Orchids and other wild flowers carpet the grasslands from October to December, and you might spot such highveld birds as jackal buzzard, ground woodpecker and – if you’re lucky – a rare blue swallow.