Gladys West and the GPS revolution: Blue Switch Day 2026

When geocachers step outside with a GPS-enabled device, they’re tapping into decades of brilliant science and mathematics that make those coordinates possible. Behind every successful find stands a brilliant mathematician whose work helped make modern GPS possible: Dr. Gladys West.

1930 – 2026
Image from the New York Times.

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We asked you: what advice do you have for solving puzzle caches?

When you see a blue question mark on the map, do you feel curious—or confused? Mystery Caches—also known as Puzzle Caches—can be intimidating. Some puzzles involve codes or ciphers. Others require solving math problems, answering questions, or reviewing the cache page for hidden clues.

Solving puzzle caches takes patience, attention to detail, and a willingness to try different approaches. We asked geocachers to share their best advice for getting started.

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Maker Magic is back!

The joy of finally finding a well-hidden container. The surprise and delight at encountering a clever gadget cache. The twinkle in a cacher’s eye when signing a logbook. It’s all magic.

We’re bringing back that magical feeling with Maker Magic, a moment of celebration and inspiration for creative cache hides. Will you host a DIY cache building workshop or lead a discussion on crafting the perfect puzzle? The magic is in your hands!

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