The morning air off Lake Naivasha is cool and sharp, the water flat as metal and dotted with birds negotiating the horizon. By mid-morning the minibus pulls into the volcanic plain that frames Hell's Gate National Park and you step out into a landscape that seems to move on its own—wind funneling through a narrow gorge, cliffs ticking with swallows, and zebras grazing so close you can hear the dry rustle of their teeth. There are no cars humming through the grasses here; the park’s lack of apex predators means you travel unshielded—on foot, by bike, and in a small boat—close enough to feel the animals regard you as an odd, slow-moving element of the ecosystem.