Tourism is Kenya’s third largest foreign exchange earner and a major employer, accounting for about 12% of total employment and 13.7% of gross domestic product. The tourism industry is based on a diverse range of natural, social, human and physical resources, but faces challenges in terms of sustainable development. For example, over 80% of all visits are concentrated in seven parks, and the seasonal nature of tourism further aggregates the stress on natural resources during peak seasons and reduces the efficiency of infrastructure and staff during low seasons.