Inappropriately placed game viewing roads can also be problematic, impeding hydrological drainage, allowing woody plants to invade seepage zones and acting as firebreaks, making “natural” fire management regimes harder to implement, a factor that has contributed to woody thickening in Hluhluwe-iMfoloziPark (Skowno et al., 1998). Tourist roads through Kruger NP and Hluhluwe-iMfolozi Park have acted as major conduits for the arrival of invasive plant species (Foxcroft et al., 2007).