Hafa Adai! Welcome to the Guam Geocachers Website

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Where America's Geocaching Day Begins ----- Guam Geocachers: "Caching Since Ever Since" Now on Facebook!

CHECK THIS OUT! Click here to see Guam's Top Hiders, Finders and Caches for this month!

This is a cool feature that I saw on the Geocaching Australia Webpage and asked if they could provide the information for the Guam Geocachers. You'll need to register for free on their website to have access to the page. You can also click through the months to see who was the top cacher(only Guam finds)for each month. See how you ranked against other cachers!

Team Duck Hunters in Formation!
Team Duck Hunters in Formation!


Mt. Lam Lam - Highest Cache on Guam
Mt. Lam Lam - Highest Cache on Guam
Ko-Hyoteki Hei Gata Sensuikan
Ko-Hyoteki Hei Gata Sensuikan
Ivan at Trashcann Falls
Ivan at Trashcann Falls
Geocachers getting ready to hit the trail
Geocachers getting ready to hit the trail
Ayuyu - Coconut Crab
Ayuyu - Coconut Crab
Jimp59 and Tammy at Piti Guns
Jimp59 and Tammy at Piti Guns
A Clue in Greek - The Odyssey
A Clue in Greek - The Odyssey
Jimp59's Dam
Jimp59's Dam
Marlocats at Tenjo's Signature Nook
Marlocats at Tenjo's Signature Nook
Legend of the Falls
Legend of the Falls
Sherman's Last Stand
Sherman's Last Stand
Mikey at Mainland Style on Guam
Mikey at Mainland Style on Guam
Cacher's Folly
Cacher's Folly
Spanish Bridge at Sella Bay
Spanish Bridge at Sella Bay
Guam Geocoin
Guam Geocoin

Welcome to Geocaching on Guam!

Hafa Adai and welcome to the website for the World Famous Guam Geocachers! If you're here for business, vacation, to visit family or if you're new to geocaching on Guam, you'll find that there is a cache near you! Whether you're into boonie-stomping, PNG's, historical or clever hides, we've got them all. Don't hesitate to contact one of our local cachers if you'd like to join them for a bit of caching while you are here. You'll find that our geocachers are some of the friendliest and most helpful people in the world! There is a lot of great information and fun stuff on this website. Please check back often as changes are made every day!

What is Geocaching?

Geocaching is a high-tech treasure hunting game played throughout the world by adventure seekers equipped with GPS devices. The basic idea is to locate hidden containers called geocaches and then share your experiences online. Geocaching is an outdoor activity enjoyed by people from all age groups, with a strong sense of community and support for the environment. It's a great way to discover the natural beauty and history of Guam, get some exercise, and enjoy the thrill of finding hidden "treasure"!

The 4 Rules of Geocaching:

1. Sign the logbook that is inside the cache.

2. If you take something from the cache, leave something of similar value in its place.

3. Replace the cache EXACTLY as you found it for the next cacher to enjoy.

4. Log your visit on www.geocaching.com.

Getting Started

You don't need much to participate in geocaching. If you haven't done so already, you'll need to set up a new account at geocaching.com. Don't worry, membership is free! All you need is a valid e-mail address. Once you've established your username, password, validated your account and set your home coordinates, you're ready to go.

Here's some of the basic things you will need to get started:

  • A computer to access the website
  • A GPS receiver (GPS enabled Blackberrys and iPhones also work great in Guam!)

These are some essential items that are normally included in a geocacher's bag:

  • Pen (some caches require you to bring your own pen to sign the log)
  • Small notebook to write notes about the cache, your experience when finding the cache, trackable items, etc.
  • Gloves
  • Swag (items for trade)
  • Plastic bag for picking up trash
  • Extra batteries

Other items to consider:

  • Small flashlight
  • Small first-aid kit
  • Cell Phone
  • Mosquito Repellant
  • Camera
  • Multi-tool
  • Pair of tweezers (for those nasty nanos)
  • Small mirror with extending handle (to look behind and under potential hiding places)
  • Water
  • Snacks
  • Compass
  • Map

You can bring the following items if you would like to help maintain caches that you find:

  • Marking Pen (For cache maintenance)
  • Logbook (In case the logbook in the cache is filled or unusable)
  • Pencil Sharpener (To sharpen pencils found in a cache)
  • Zip Lock Bags - Various Sizes (To replace worn out bags in a cache to keep items from getting wet)
  • Pen/Pencil (To leave in a cache in case the writing tool is no longer working or missing)
  • Ready-made cache (For new cache placement if you come across a great spot)

Guam Maps For Garmin GPSs

There are two sources for downloading the Guam map for Garmin GPSs. The maps from the pay site works with the Garmin nuvi, Etrex, Colorado, GPSMAP, Oregon and Dakota. You can click here for the Basic and Routable maps of Guam. Both the Basic and Routable versions contain the same geographic map data (e.g., roads, lakes, rivers, parks, points of interest, etc.). However, the Routable version is enhanced with auto-navigation capabilities such as route-finding and turn-by-turn directions. The Basic version does not provide auto-navigation. The cost as of January 7, 2011 is $24.95 for the Basic and $39.95 for the Routable.

If you want to try the free version (requires a bit of work and knowledge), you can click here and have a go at it. You can find detailed directions on this website on how to download and install the maps to your GPS. I've downloaded the map to my Garmin Colorado and it works great! It doesn't give me turn-by-turn directions but for the most part, the street names are pretty accurate.

Finding Your First Cache on Guam

1. Login to geocaching.com.

2. Enter your zipcode and click "go".

3. Select a geocache by clicking on it's name.

4. Enter the coordinates of the geocache(s) into your GPS unit. All coordinates for Guam begin with N13 and E144.

5. Use your GPS unit to assist you in finding the hidden geocache. Remember the 4 Rules of Geocaching.

6. Sign the logbook and return the geocache to its original location.

7. Share your geocaching stories and photos online. Visit the Glossary if you are interested in learning some of the terminology and acronyms used in geocaching.

Types of Caches

Knowing the type of cache you are looking for will certainly make it a lot easier to find it. Here are the types of caches you can expect to find on Guam:

  • Traditional: The original type of cache consisting of (at a bare minimum) a container and a logbook. The coordinate listed on the traditional cache page are the exact coordinates of the cache.
  • Multicache: There are many variations to multi-stage caches. The most common is that in which the first container or waypoint contains or provides coordinates to the next location. Another popular variant is a series of multiple waypoints, each of which provide partial coordinates for the final cache’s position. Offset caches are another form of Multicache.
  • Mystery-Puzzle: The “catch-all” of cache types, this form of cache often involves complicated puzzles that you will first need to solve in order to determine the coordinates for the location of a cache. The posted coordinates are not the actual location of the cache but will be within 1-2 miles of the actual cache location.
  • Virtual: A virtual cache is an existing, permanent landmark of a unique nature. The seeker must answer a question from the landmark and verify to the cache owner that he was physically at the location. No new virtual caches are being accepted by geocaching.com.
  • Earth Cache: This is a unique but limited cache type. An Earthcache is an educational site that people can visit to view a unique geoscience feature on-the-ground. Logging an Earthcache find requires compliance with the requirements stated by the owner and the Earthcache Website, including answering the required questions by e-mail to the owner, providing original photos if so requested, etc.
  • Event Cache: Event caches are gatherings that are open to all geocachers and which are organized by geocachers. Geocachers log an Event Cache as "Attended". They are normally required to sign a logbook at the event before they can officially log their find.
  • Cache In Trash Out Event: CITO Event caches differ from a regular Event Cache in the fact that the main purpose of the CITO Event is to pick up litter at a park, remove piles of junk near a popular waterfront, etc. It is setup and sponsored by geocachers, not by other organizations, and is a one-time gatherig of geocachers to clean up a public area.

Difficulty/Terrain Ratings

The ratings for difficulty and terrain are based on a scale of 1 to 5, 1 being easiest and 5 being the hardest. Knowing the difficulty and terrain ratings will help ensure that you properly prepare for your cache hunt.


The scale for difficulty is described as follows:

1 - Cache is in plain sight or location is fairly obvious.

2 - Cache could be in one of several locations. Hunter may have to look for a while.

3 - Cache may be very well hidden, may be multi-leg, or may use clues to location.

4 - Cache likely requires special skills, knowledge, or in-depth preparation to find. May require multiple days or trips to find

5 - Finding this cache requires very specialized knowledge, skills, or equipment. This is a serious mental or physical challenge.

Visibility, accessibility, and relative signal strength due to tree cover or other obstructions are taken into consideration when determining the difficulty of finding the cache.


The scale for terrain is based on the following:

1 - Paved pathway that is relatively flat and accessable to a person in a wheelchair.

2 - Well defined, hard-packed trail with little over-growth. Can access this with a bicycle. Slight elevation changes. Less than half a mile from the parking area to the cache.

3 - About 1/2 to 2 miles. Trail could be gravel, sand or mud in spots. Could contain waiste-high overgrowth. Slight elevation changes.

4 - 2 to 10 miles. Trail could be heavily overgrown. May require a machete to get through. May have poisonous or thorny plants. Moderate to steep elevation changes.

5 - Over 10 miles. Trail, what trail? May require specialized equipment to access the cache. May follow a stream-bed or be very rocky. Severe elevation changes. You may have to use your hands or slide on your backside. Very likely to have poisonous or thorny plants.

Cache Sizes

These are the cache sizes for all caches that have a physical container:

  • Micro: Examples are 35mm film canister, bison container, etc. Less than approximately 3 ounces. Holds a log and maybe a few micro trades. A nano, the smallest cache available, only holds a log and is one of the sizes in this category.
  • Small: Small sandwich-sized click-lock container or similar. Less than approximately 1 quart or liter. Holds a logbook and small trade items.
  • Regular: Tupperware-style container, ammo can, etc. Holds a logbook and regular trade items.
  • Large: 5-gallon bucket or larger.
  • Other: See the cache description for the size.

Recommended Caches by Local Geocachers

Guam Geocoin

Yes, Guam has it's own trackable geocoin. They are trackable on geocaching.com and have their own icon. The coin was introduced during the Guam Geocoin Event held on July 12, 2008. Blygoat just received a special order of these limited coins and they are available at $7.00 each. You can contact him at whkd2@yahoo.com or on facebook.

Top Geocachers in Guam

Click here to view the latest list of the top geocachers in Guam. All Guam cachers who have 200 or more cache finds are on this list. This list is updated twice a week on Tuesday and Friday at 8:00PM Guam Standard Time (4:00AM Mountain Time: GMT-7).

Milestones of Geocaching on Guam

The Latest 5 Milestones:

32. June 14, 2009 - "Ferdinan's Tank Stop" by Geofreqman is the 500th cache on Guam! This means that those who have GPS's that will only accept 500 waypoints will now have to delete some of the caches on their GPS's to make room for the newer caches. HUGE milestone for our small island. I couldn't have imagined that this day would have come just a short two years ago! This is also less than a month before our next event CITO in the South by Rhodesisland and Lilmsmuffet being held on July 11, 2009.

33. November 4, 2009 - "7 Sentries" by Geofreqman is the 525th cache on Guam! There have been quite a few caches that were archived from being muggled so this milestone took a bit longer to reach. This was also Geofreqman's 51st hide and came in 10 days before our next WWFM VI Event. It's amazing how events and milestones seem to coincide with each other!

34. January 10, 2010 - "Who offed the kandet?" by Maga'haga is the 550th cache on Guam! With the addidtion of Team Maga'haga, Team Duckhunters and others, new life has been injected into the Guam Geocachers community. The bar of geocaching on Guam has just been raised and we should see every nook and cranny on Guam being peppered with caches!

35. January 22, 2010 - Geocaching on Guam was once again featured on "Tech This Out" on the Channel 8 and 11 news today. This was a replay of the feature that was done with John Davis, reporter for KUAM TV8 and Jimp59 and Blygoat. The original video can be viewed by clicking on "Videos" in the menu on the right of your screen.

36. May 1, 2010 - "10 Years - Guam, USA", an event hosted by Blygoat is the 600th cache on Guam and his 100th hide. This event cache celebrates the 10th anniversary of geocaching and was done along with hundreds of others around the world.

See all Milestones of Geocaching on Guam

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