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September 5, 2003
Volume 41, No. 2

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New high-tech treasure hunt draws adventurers

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New high-tech treasure hunt draws adventurers


A cache at Hickory Hill Park includes Wiffle balls, plastic Army figurines, a seashell, and a mini cow bell. Photo by Tom Jorgensen.
 

Gather the troops. Study the clues. Calculate the coordinates. And set off to find hidden treasure.

Never mind that the treasure might turn out to include a Maytag-repairman magnet, a rubber ducky, black-rimmed safety glasses, and an assortment of McDonald’s Happy Meal toys, crammed into a rusty metal box or Tupperware container.

Cache me if you can:
A guide to cache lingo

Geocaching—geo for geography, caching for the process of hiding a cache; pronounced geo-cashing, like cashing a check; also known as GPS Stash Hunt.

Offset cache/Multi-cache—not found by simply going to the coordinates listed; published coordinates lead hunters to a site, then the hunter must search the area for the next clue or continue based on Internet instructions.

Virtual cache—cache is actually an existing landmark, such as a tombstone or statue; hunters must answer a question from the landmark and let the cache owner/creator know as proof that the hunter was there.

Hitchhiker—an item that is carried from cache to cache (or person to person) and hunters can track its progress on the web.

Travel bug—a new type of hitchhiker that looks like a military dog tag with numbers on it that hunters can type into the www.geocaching.com web site to track it; many bugs have a goal, such as traveling to 10 countries (geocaches can be found in more than 180 countries).

Cache in, trash out—phrase used to remind geocachers to help clean up, and keep clean, parks and other cache-friendly places; International Cache In Trash Out Day was April 26, 2003.

Great Plains Geocaching—organization with the web site www.gpgeocaching.com, dedicated to those people who enjoy geocaching in the unique geography of the Great Plains, including Iowa; site includes information on public land-use policies, upcoming events, and geocaching organizations around the country.

(Sources: www.geocaching.com, www.gpgeocaching.com)

It’s the thrill of the hunt that keeps bringing Joe Reinhardt and his fellow searchers back for more.

Reinhardt, associate professor of biomedical engineering, is among the growing number of weekend adventure seekers and high-tech gadget lovers around the world going geocaching.

Geocaching—one of those fast-developing “techie” terms that hasn’t yet made it to the pages of Merriam-Webster—is an adventure game for global positioning system (GPS) users. People hide caches, or boxes filled with trinkets, and share the location coordinates on the Internet. Then, GPS users search the web for caches in their area, plunk in the numbers, and head out in a hunt for the cache.

It’s not as easy as it sounds. A GPS is a hand-held, battery-powered device that uses satellite coordinates to determine your approximate geographic location in degrees, with the emphasis on approximate. It’ll get you within, say, 6 to 20 feet. After that, it’s up to the searcher’s keen eyes and gut feeling.

Once they find the hiding place, searchers may take one of the trinkets and leave another behind in exchange. They also may write in the cache’s log book, telling who they are, when they visited, and what bit of the booty they stashed and snatched, before placing the cache safely back in its hiding spot.

They might even log in to a web site such as www.geocaching.com and describe their journey to a particular cache.

Reinhardt, a self-described “computer geek,” received his first GPS from his wife for Christmas 2001 and made geocaching a family affair.

“The treasure-hunt aspect of it is a lot of fun. We went out as a group, with my wife Jennifer, our two kids, and friends. It’s exciting to discover lost treasure,” he says.

On family vacations, they take the GPS with them. Not only can they use it to look for caches along the way, they program routes and figure miles to the next town.

“The kids love it. It’s a fun distraction for them in the car,” he says.

Ann Freerks, designer in University Relations Publications, and her family went along with the Reinhardts last Mother’s Day for a geocaching excursion.

Freerks had heard Reinhardt mention geocaching before, but other than that she had no idea what to expect.

The group ended up in Ryerson’s Woods Park, south of Iowa City, where they found a cache, as well as a bounty of morel mushrooms along the route that they took home and cooked for dinner.

“It was a beautiful day, nice to get out and enjoy the weather and let the kids run around. As long as I didn’t actually have to do math calculations to find the spot, I thought it sounded great,” Freerks says.

“I haven’t been again, but I’d like to go. It was a good alternative to swimming at the pool or playing in the park,” she says. “It’s a little more exciting for everyone.”

Geocaching may take off as the new pastime for University retirees. Daniel Sheldon, associate professor emeritus of curriculum and instruction, and his wife Sharon, retired secretary for the College of Dentistry, left the University in 1996 and now divide their time between Wisconsin and Arizona—with some trips back to Iowa City to visit relatives.

Sheldon has been geocaching for several years and is amused by the similarities between it and a class assignment he used to give his environmental studies students. He required them to find their way from point to point using a lot more brainpower and an old-fashioned method—an ordinary compass.

Geocaching’s easier and more entertaining, he concludes.

“What more could you ask for in an activity? It provides physical exercise and mental exercise, it stimulates creativity, and you can meet people from around the globe who are doing the same thing,” Sheldon says.

His next step, he says, will be to hide some caches of his own. First, he’ll need to read up on the rules, which are detailed on geocaching web sites.

For example, use your common sense (i.e., don’t put explosives or other weapons in a cache). Also, ask permission if you’re placing it on private land and check with land managers if it’ll be on public land. You’ll be in violation of federal regulations if you put a cache in any area administered by the National Park Service.

Even with rules and restrictions, the web lists thousands of caches. A peek at www.geocaching.com in mid-August revealed 327 caches within 66 miles of the University’s zip code.

Several fyi staff members trekked around the Iowa City area one afternoon, looking for caches in Hickory Hill Park and near Carver-Hawkeye Arena. They left copies of the August issue of fyi and numerous happy mosquitoes who feasted on them.

One helpful hint: Remember the bug repellant.

Reinhardt expects the numbers of geocaching fans to soar as technology improves and GPS units become more affordable. A basic model can run $100 to $150, compared to several hundred dollars a few years ago.

For now, geocaching’s still anything but a household word.

“People ask me what I did over the weekend,” Reinhardt says. “I tell them and they give me that look. They sort of scratch their heads and wonder.”

by Amy Schoon

 

Published by University Relations Publications. Copyright the University of Iowa 2003. All rights reserved.
   

 

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