Implementing sustainable principals and applications when landscaping parks are vital to the development of built environment. This paper presents guidelines to be considered for the current and future sustainable parks in moderate climate regions in order to put ecotourism, cost effective operation and maintenance, clean environment, promotion of renewable energy, and resource preservation into the effect. In so doing, several parks, located in a moderate climate zones, have been studied from the aspects of location, topography, operation, and landscaping characteristics. Prince Meshari Park located at Al Baha City, Saudi Arabia was considered as a case study to apply all guidelines proposed in this investigation.