Geocaching is becoming a popular pastime particularly amongst travellers. It's like a global Easter egg hunt. People use GPS devices to locate hidden caches. Once located you record your find in the enclosed log book. Some caches have other items in them, left for newcomers to enjoy. Items can be removed as long as something of equal value is left in its place.
There is an app (of course) and a dedicated website.
I have friends who enjoy geocaching, so yes I've heard of it but it doesn't appeal to me. I am quite happy to go for a ramble through beautiful landscapes without needing the incentive of a treasure hunt!
Yes I have heard of geocaching and have participated. My husband is a geographer by trade and he is the person who introduced me to it a very long time ago! I had fun with it, but don't want to get involved all the time! It is a fun sort of thing to do out in nature, but really I prefer to just hike around and enjoy what I see in nature. I think my kids might enjoy though, so I can see participating again in my near future.
I've been reading a few travel blogs of late and noticed people are into geocaching. It doesn't appeal to me. If I'm travelling or on holidays I would prefer to spend my time focused on the natural surrounds, taking in the country.
One of the blogs I read, the people had searched for and not found three geocaches in a row and were most frustrated by this. It's not the way I would choose to spend my time.