https://www.geocaching.com/geocache/GC9V9HB_cerro-do-castelo-de-alferce
GC9V9HB Cerro do Castelo de Alferce (Traditional Cache) in Faro, Portugal created by Municipio de...
Geocaching is a treasure hunting game where you use a GPS to hide and seek containers with other participants in the activity. Geocaching.com is the listing...