LAS CRUCES — Geocaching is a modern-day treasure hunt that has millions of fans throughout the world. "There are caches now in every country, in the Antarctic and the International Space Station. We have 30 active local caches here in Las Cruces and there are about 1,400 within a 50-mile radius," said Victor Gibbs, who heads Las Cruces Geocachers.
Whether you're a veteran or a beginner, you'll have a chance to experience the global phenomenon with a real-time reward this weekend at the Centennial Hot Chocolate Cache, from 8 a.m. to noon Saturday at Mesilla Valley Bosque State Park. It's one of many cache events to commemorate New Mexico's statehood and is open to anyone who's interested in geocaching, a treasure-hunting game using GPS to hide and seek containers.
"The event will include a three-stage, temporary geocache, allowing participants to compile everything they need to create a nice hot mug of hot chocolate. We're really excited to get people out here to teach them more about geocaching," said Jan Kirwan, Mesilla Valley Bosque State Park supervisor.
The event is free with a valid park pass. Daily entrance fee is $5 per vehicle and annual day passes are $40.
Most geocache events are free and, as with many of life's great adventures, the fun is in the journey and the thrill of discovery is its own reward.
There are currently more than 5 million geocachers and more than 1.6 million currently active geocaches worldwide, according to www.geocaching.com.


And that's probably a very conservative estimate. A mid-February report said that more than 4,235,300 new logs have been submitted in the past 30 days. A recent Google geocaching query produced upwards of 28,600,000 entrees. Here's how it works: You start by browsing online or sharing tips and ideas with other aficionados to find hunts that interest you.
Next, you search for the cache of your choice using a GPS (Global Positioning System) device or smartphone.
Finding a specified GPS basic location can be a snap, but clever geocachers have grown increasing crafty at hiding caches in elusive or camouflaged spots, once you've reached the specified site.
When you've located the cache, you sign the logbook and see what you've found.
Many treasures are left in place, but geocaching etiquette demands that if you do take what's there, you must leave something comparable, of equal of greater value, in its place. Some caches also contain "Hitchhikers" items, sometimes with their own traveling logbooks, that are placed in a cache with instructions to travel to other caches. Some "Hitchhikers" have a Groundspeak Travel Bug, a trackable tag that you can track online.
Online sites are a big part of the process and the step that some enjoy the most. It's a way to share your experiences and fun with other cachers.
The adventure can be anything from a date to a family outing or a specialty quest for a specific interest group or event, like New Mexico's Centennial. There are mystery and puzzle caches that require cachers to decipher clues before they can determine coordinates.
"Geocachers are a really diverse bunch of people that runs through the full spectrum of humanity: Republicans, Democrats, young and old," said Gibbs.
He stared geocaching a decade ago, in 2002.
"I've found 1,948 caches and I think one of the most exciting was a cache at Playas Peak in southwestern New Mexico. It was a pretty steep climb. There are mountain climbers and scuba groups that find underwater caches. It's a great way to get outside and see nature," said Gibbs. Cachers want to enjoy — but not disturb and sometimes even clean up and improve — cache sites that can range from urban locations to wilderness areas.
"In fact, there's an initiative called CITO, which stands for Cache In Trash Out," said Gibbs.
Cachers also agree not to place caches near airports, schools or train tracks.
"That's because there were concerns about security and bomb scares," Gibbs said.
He's established 22 cache sites himself. "And that means taking responsibility for a cache, maintaining it, making sure that there's a log and replacing the log when it's full."
He particularly enjoys Hitchhiker and Travel Bugs.
"I like moving boxes from cache to cache. A friend of mine has one running around in Europe now."
If you'd like to learn more about hunting or placing your own caches, start by registering with the official global GPS cache hunt site at www.geocaching.com. It's free and offers resources that include games, merchandise and sophisticated, multilingual search engines that allow you to seek cache sites by zip code or location and connect with groups and individuals who share particular interests.
Treasure hunting instincts have very deep roots from ancient to modern times, manifesting in everything from pirate maps and novels to "Indiana Jones" movies and the old low-tech scavenger hunts.
"Treasure hunts were very big in the 1800s, with all kinds of maps and puzzles," said Gibbs, who adds that modern geocaching started on May 3, 2000, when computer consultant Dave Ulmer decided to test GPS accuracy by hiding a cache in the woods near Beavercreek, Ore., and posting coordinates online.
Tech advances will only increase interest, Gibbs feels.
"With smartphones and iPad apps and more good data like planning maps and aerial photos helping us locate, I think more and more people will get into geocaching," Gibbs said.