The Pafuri-Banyini pan in South Africa’s north-eastern Kruger National Park teems with game. Elephant bulls amble among clumps of marula trees and impala leap gracefully across the grassland, where buffalo graze. Located in the triangle between the Limpopo and Luvuvhu rivers where South Africa, Zimbabwe and Mozambique meet, the pan is more than an idyllic corner of the Kruger park.