Backwards Geocaching: How to Make a Reverse Geocache Box « Mad Science :: WonderHowTo
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Backwards Geocaching: How to Make a Reverse Geocache Box « Mad Science :: WonderHowTo
PDF) Ihamäki, P. (2015) User Experience of Geocaching and Its Application to Tourism and Education, Phd thesis, Annales Universitatis Turkuensis B404, University of Turku, Juvenes Ltd., Turku.