Abstract
Globally, adults engage in various forms of high-investment adventure play in their leisure. Sometimes, these are complementary to their careers, their self-identities, and their social circles. This type of adventure play requires investments in learning, KSA (knowledge, skills, and abilities) development, social network development, time, moneys, reputation, and other costs. It may involve some level of risk-taking. This work explores this niche space of “hard” adventure play as expressed on the Social Web as a type of peer-shared teaching and learning, with a focus on “luxury geocaching” as the activity.