In 2010 heeft Groundspeak de Souvenirs geintroduceerd. Deze kun je krijgen voor het vinden van caches in bepaalde periodes of voor het vinden van een cache in een bepaalde regio. Deze cache is een challenge cache die je mag loggen als je 100 van die Souvenirs hebt verzameld.
In 2010, Groundspeak added a new set of icons called Souvenirs that you can earn for finding caches in certain places. Some souvenirs are awarded for finding a specific cache like The Lily Pad at Groundspeak HQ, while others have been awarded for finding caches in certain states or provinces, both in the USA and abroad. Others have been awarded for special caches series like the Arts Crush series here in Seattle or for caching on specific days like International Geocaching Day.
This Challenge cache is designed to reward those who have earned at least 100 souvenirs.
To make the grab, all you have to do is collect 100 souvenirs on your account and then go out and make the grab.