3.1. Space, time, and system quality in sustainability
The spatial scale is very important in attempting to put sustainability into practice, or in gauging the level of sustainability in a tourist destination. In tourism, the spatial scale can be divided into five categories: a single destination, local, regional, national, and international levels. However, although the administrative boundary may be defined clearly, there may still be problems in measuring sustainability. It is very common for one destination to be located over more than one political or administrative or environmental boundary. In addition, determining the spatial scale of a destination may be limited by budget, time and methodology or technology.