I posted a similar post a little more than a year ago when I first heard of it. Check out http://www.geocaching.com

The game is where you take a GPS receiver and wander around looking for hiden treasures (CACHES) that have been hidden or found in various places.

There are MICRO caches which can be a film container or a pill bottle etc. These caches might only contain a small pencil like you would get to keep golf scores and a rolled up piece of paper as a log. On the other end, a full size cach can be anything from an Ammo Box, Tupperware or Rubbermaid type container, a piece of PVC or may be a hole in a tree stump or a fake rock or whatever someones imagination can offer. The larger caches will often contain a logbook, pen or pencil, sometimes a disposable camera that the caretaker will process and post on the web of people who have found the cache, and here you will often find toys, trinkets, collectables etc. The idea here is if you see something you like take it. However good manners is that you should replace the item with something you have. A trade so to speak. Also as is discribed here if the cache has a theme, IE LV Collectables than keep with that theme.

Some items that have been mentioned NOT to put in a cache are items that can be explosive, dangerous, weapons, MATCHES, because they can cause fires, which would not be good in wilderness or wooded areas where caches often exist, and food. Bottled Water, it has been said, can be good but take them out in the winter so that they don't burst and damage your cache. Food can attract animals that might eat their way through your cache. Also think of the parishability. A cache might get kind of hot in the summer.

Items that frequently exist in caches and are good, Happy Meal Toys, Batteries, (AA for a GPS). Small Flashlights. Along the line of Casino items, Chips Tokens, Swizzles, Cards, Slot Cards, Dice, Keychains and Postcards would be good. There is also an item called a Bug which is a dog tag type of chain and tag. Put that on an item and send it on it's way. See the above webpage for more info. The Travel Bug has a serial number which you register and you can track it around to see where it goes. You find one? Put it in the next cache you find and send it along it's way again. Along the line of a travel bug that brings up,

WHERES GEORGE. http://www.wheresgeorge.com Mark dollar bills and spend them or use them in your normal ways and see where they go. You can get stamps on the internet to stamps some of your bills and then spend them. See how far and how fast they travel. Sometimes people have been known to take an item from a cache and put some money in it's place. Usually a buck or so. I have heard of as much as $5 but other then extreme situations never more. Stamp your bill with Wheres George and add to the fun.

VIRTUAL caches are those which aren't really a cache at all They are a place or location or whatever where you might go and get some information and report back to the person who listed the cache. There are a few of these along the VEGAS Strip and around LV. When you properly report back or accomplish a goal you are credited with the find. With any cash you can log your find on the website on that caches page but you don't want to post such information about a Virtual Cache as you would give it away for future finders. When you post finds keep them general and try not to put "SPOILERS" which are items that will Spoil the fun for the next guy.

I don't remember the name but there are also caches where you find one cache and it will lead you to another and then another etc.

Caches can be almost anywhere. They have difficulty ratings depending on what you have to do to get to them then how hard it is to find them. Say you have to go to a rock face and rappel down to get to the cache. That might be difficult. Getting into a boat and putting on scuba gear might also be difficult. Walking a trail in a Forest Preserve etc. might not be difficult but the hider might have gone to some extremes to hide the cache. I have seen where some guy created an artificial tree stump to hide his cache. Or a fake rock. It could be easy to get there but hard to find. Also certain terrain like rivers or lakes etc. might add to difficulty because of the difficulty to get accross. There is one near me on an island inhabited only by deer. It is in the middle of some lagoons. After braving the MUD paths and Mosquitos etc. there is a small path that goes over to the island. If it has been rainy the path may not exist leaving the only way to get there is a canoe. Once you get there it is you, the cache and a heard of deer that isn't accustomed to much human contact.

I haven't gone out to find any yet as I haven't had the time in decent weather to find one. The last couple of summers have been so thick with mosquitos and with West Nile around here I haven't felt right going out into the Forest Preserves to find them. It does seem as a lot of fun and a good way to advance our hobby. Maybe a series of CCGTCC related caches accross the country turning on new collectors to the joys of collecting casino items. I don't know if it would be too practical though to put a cache somewhere big enough for an ice machine.