You know how kids like the idea of a treasure hunt? Well that's exactly what Geocaching is... only you are hunting for real treasure. Kids and adults both love it and it's something they can do together. My kids love doing this when we go out on hikes. You can download the Geocaching app to your phone for around $10, and use it to help locate the vicinity where the treasure contain has been placed.
We don't always find the treasure and it's disappointing when we don't. Some are just hidden so well that despite our efforts and time we can't locate it. Grr! Even with four of us in our party there have been times when we are in the location of the treasure, but can't find the container. But when we do find it we are happy! Using the Geocaching app you can navigate to the site of treasure when you are out on a hike or in a park.
Once you find the treasure you can take an item, as long as you leave an item. So you need to take some trinkets with you that you won't mind leaving behind. It's always a "take one, leave one" type of deal. There is also usually a log in the container that everyone who finds it signs. Once you are done with the container you put it back, so the next person can find it. Geocaching is just one more way you can have fun with your kids out in nature. They love the thrill of locating the treasure!