Nowadays, smart-phones are so widely spread that almost everybody has a smart-phone. A smart-phone is an absolute necessity and everybody carries one around all the time. As the computing power and memory capacity have been significantly improved, various applications are now available on smart phones. Furthermore, most smart phones are equipped with very accurate GPS (Global Positioning System) receivers. Tourists’ satisfaction can be significantly enhanced if location based useful information is provided to them. This paper introduces an Android app that 100% correctly recognizes a user’s position when the user locates at a point of interest in Anapji, a famous artificial pond in Gyeongju National Park.