https://www.geocaching.com/geocache/GC1EMXN_vartiosaaren-siirtolohkare-erratic-boulder
GC1EMXN Vartiosaaren siirtolohkare - Erratic boulder (Earthcache) in Uusimaa, Finland created by...
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...
erratic boulder