Management is required to ensure that standards of quality are maintained and management objectives accomplished, and determining acceptable levels of change in parks and protected areas is based largely on associated indicators and standards of quality [Manning and Anderson 2012). A large number of indicators exist around the world, and for an overview we recommend Manning [2007). Among the indicators frequently found in such systems are: number of visitors, number of campsites, length of trails, evidence of litter, impact on ground and vegetation, encounters, visitor facilities, behaviour of visitors, visitor expenditures, and visitor satisfaction.