according to UNESCO for which one of the essential functions is the preservation of cultural heritage worldwide,event such as national day and competitions should be devoted to encouraging the appreciation of natural or man-made landscapes and site in order to direct public attention to the fact that the protection of their beauty and character is of prime importance to the community'(UNESCO,1983). yet it is difficult to completely eliminate negative outcomes.the event planner should be aware of these and seek to reduce them where possible.