But basically, it's a treasure hunt. You download the Geocaching app, and then you use the GPS on your smartphone to locate the nearest Geocache. When you find it, depending on the size, there could be a log book for you to sign, and maybe a prize too! Of course, you can also make your own for other people to find too.
I have just discovered it, and I can't wait to get out there and start finding them! You can even use it as a world wide adventure, and use the app to find Geocaches hidden in other cities and places around the world.
To find out more the website is here: geocaching.com
and the (free) android app is here: play.google.com/store/apps/geocaching.intro
A map of Ireland showing all the Geocaches
