This article presents a study of geocaching, a mobile outdoor game, and explores the interactive communication channels players use. In this case study, 'interaction communication channels' refers to all the means by which players communicate with each other, including devices and services related to the game. This case study was carried out as an Internet survey with twenty-one geocachers. The study also discusses articles, which offer an informative picture of the global game of geocaching, several related applications, communication channels used by players, and new services surrounding the game.

Digital communication channels bring about new varieties of communities, which connect desktop computers to pervasive global networks. Some of these are extensions of non-digital forms of play, while others offer entirely new experiences and playscapes. There are approximately five million people worldwide participating in the game world. Geocaching is a game made by the players, who use GPS technology in a new way, develop it continuously, and create more interactive communication channels and services; it can thus be seen as a pilot test area for game designers and developers. This present study provided a platform for investigating the deeper question of how players use and interpret different interactive channels in the geocaching game while collaborating in locating and finding geocache places, and how players use channels to interact with others. In the Discussion section, conclusions are given in relation to different geocaching approaches and suggestions for future work are outlined.