GeoCoolTM is an innovative infill alternative that provides superior athletic performance while reducing surface temperature through slow evaporative cooling. GeoCool can replace SBR rubber granules and silica sand infills while eliminating problems associated with other alternatives—decay, flotation, dust, migration (due to wind, rainfall and foot traffic) and the need for constant watering of the turf to maintain efficacy. GeoCool is an inorganic oolitic (“egg shaped”) calcium carbonite mineral (“aragonite”) created—and constantly renewed—in shallow sea beds. It is 100% recyclable, neutralizes odors, and is virtually dust-free. It is non-toxic—in fact, calcium carbonite has been ingested by humans for eons./h3>