https://www.geocaching.com/geocache/GC6FXBV_porto-lobo-alvoco-da-serra
GC6FXBV Porto Lobo - Alvoco da Serra (Traditional Cache) in Guarda, Portugal created by pinilla16
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...