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29supplemental activities C. Geo-cache the HighWaterLine geo-caching is a new sport that involves finding locations using gPS coordinates. Each geo-cache typically involves several locations marked by a small container or object with a log book, asking you to sign-in after you’ve visited that location . You can easily create your own geo-cache by visiting sites like and setting up an account . To invite participation in your HighWaterLine performance, you can create a series of localized geo-caches along the route you plan to walk . Each geo-cache can have information about climate change, maps or other information for people to find while they look for each marker. This could help make the project fun, exciting and invite participation after you’ve completed your line . d. Performing the Water table to begin, ask participants to first research infor- mation about your watershed. Where does water flowandcomefrom?Usethisinformationtocreate a series of maps that show hydrology and water flow. Next imagine a scenario in which the water table is increasing or shrinking in your community . Ask students to choose an area to map this phenomenon outside using colored chalk to visualize the new flood zones or land areas now exposed because of heat and drought conditions . Draw arrows to show which way the waters will flow or shrink. A group of participants can also wear blue shirts or hold blue signs to represent the water . Set the scenario in motion and ask students to follow the flows of water mapped out with chalk and perform a flood or drought event. stage 2: map the highwaterline