The Reverse Geocaching Puzzle Box – Geocaching.com’s Lost & Found Video

Inventor Mikal Hart shifts geocaching in reverse.  Hart’s “Reverse Geocaching Puzzle Box” is a locked box that needs you to deliver it to a secret location.  The box won’t unlock until you take it to this pre-programmed destination.

The GPS-enabled box presents users with a deceivingly simple button and a small display.  You press the button and the display reads a distance. Players only have 50 chances to move the box to the correct location before the box locks forever.

There are many more geocaching adventures. Take a look at all the Lost & Found videos here.

  • Joboo

    Very cool idea!!!
    i hope it takes off for ya!!
    Peace, Joboo

  • Jtmason65

    i want one..or two, or three

  • This is brilliant! And takes the entire adventure to a whole other level! Can't wait to get out hands on one of these and try it out.

  • Ttester79

    Where can I get 1. Would be great to be able to own a few of these. Gotta keep us posted on if and/or when you start selling these. I would be willing to purchase one depending on the price

  • caldale duo

    What a brilliant idea! I want some aswell please!!!

  • 276197626

    add you ideas.

  • I have one that my son made for me for Father's Day and our trip to geowoodstock – so cool! I'll have it by the DeLorme booth – look for TeamHorwich…

  • Team K1W1

    I have built one similar to these and have it listed as a puzzle cache.


    this is so great..for my friends I did a an all day caching trip and thought I was cool planning that …this is techno…

  • Marilyn MacGown

    I'd like to try it sometime!

  • Chris

    How very clever and cool. Can’t wait till someone sends one this way.

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  • rsb

    Is it a april fools joke that when I click the “here” link in the:

    There are many more geocaching adventures. Take a look at all the Lost & Found videos here.

    I get a 404 page not found.. or is it just ironic.

  • Deltadoc333

    So does no one know how to triangulate a position using three distances?

  • Ryanadanderson

    Deltadoc333 you can find a program online using the google. Google earth will probably work if you tinker with it. 

    This is from memory and logically connecting concepts, it could be a little off but…it should work!Or, if you want to do this on your own, just go to a GPS coordinate and push the button.  If it says 130 miles record that and the coordinates of where you pushed it.  Then travel some distance in a direction (go a little bit of a distance, I’d go on a shopping trip or something to get some miles going) and then repeat the first step, (push the button, write the distance, and record the coordinates of your location).  Do the same thing but in a different direction (non linear to the other places).  Put all three different positions on a map!  Then, with each position, use a compass or a string and pencil, and make a circle with a radius of the distance to the mysterious point.  It’s somewhere on that circle.Repeat the previous step with the 2nd point and the 2nd points radius. Now, these circles will converge at two locations.  You can travel to both, or do the same thing with the 3rd point.  All these circles should converge at a single point and that’s about where you should go.  Since you have 50 tries and you’ve used about 3 (could be more depending on how many people pushed the button), you have some room for error but head on to that point.  This kind of defeats the purpose but if you had a 3 year old push the buttons 40 times then this could save ya. Remember to save a couple attempts for when you’re at the location to account for user error. 

  • Ryan

    They are about $400 each i’ve heard…

  • That is simply amazing. Wish I had gadgets like this when I was younger and more adventurous.