They’re not as popular as they once were, mostly for environmental reasons, but when I was in elementary school, balloon races were annual events which were tons of fun. For anyone that hasn’t had the experience in participating in a balloon race, each participant gets a regular helium balloon with an attached string and postcard. They’re all released at once and the balloons spread sometimes hundreds of miles. If a postcard is found, it’s reported or mailed back and whichever one gets found the furthest away wins. While balloon races are great fun, there are some environmental concerns with releasing hundreds of balloons (which essentially become trash) regularly into the wild.
So, what is a more modern and environmental way to have the same kind of fun? Believe it or not, Geocaching has the answer. Geocaching is a game in which millions of physical containers are hidden throughout the world. These containers are tracked on a website which, with each listing, contains GPS coordinates of the geocache and an inventory of what is inside it. Trackables, or travel bugs, are physical items, each of which has a unique tracking code, which can be placed inside of a geocache. Each trackable item maintains a history of the geocaches (and their locations) that it has been placed within — and that becomes a virtual balloon for our balloon race.