Letterboxing is an intriguing “treasure hunt” style outdoor activity. Letterboxers hide small, weatherproof boxes in publicly-accessible places (like parks) and post clues to finding the box online on one of several Web sites. However, clues to finding some of the most highly-sought boxes are passed around by word of mouth.

There are about 60,000 active letterboxes listed on LbNA alone. Individual letterboxes usually contain a log book, an often hand-carved rubber stamp and occasionally contain an ink pad. Finders make an imprint of the letterbox’s stamp on their personal log book, and leave an imprint of their personal stamp on the letterbox’s logbook.

1. Kepler Kea Te Anau, Southland, New Zealand, INT
2. Edmund Hillary Mt Cook Village, Canterbury, New Zealand, INT
3. Tower Of Orthanc Glenorchy, Otego, New Zealand, INT
4. Moo Brew Hobart, Tasmania, Australia, INT
5. Fairy Penguin Cape Woolamai, Victoria, Australia, INT
6. Great Ocean Road Brewhouse Apollo Bay, Victoria, Australia, INT
7. The Original Saugus Cafe 1886 Santa Clarita, CA
8. Amazing Asia – Vietnam & Cambodia Oro Valley, AZ (3)
9. Antarctic Expedition Oro Valley, AZ (4)
10. Argentine Memories ORO VALLEY, AZ (5)
11. Recollections of Spain ORO VALLEY, AZ (4)
12. Wisconsin's 250 Years of History: Eagle Eagle, WI

More new letterboxes

1. Find a Heart Rock and Leave Here Atascadero, CA
2. Prepare to Dye Paso Robles, CA
3. Dead Man's Party Paso Robles, CA
4. Hangman Game 183 Spring Branch, TX
5. Peace Out There Amargosa Valley, NV
6. Antarctic Expedition Oro Valley, AZ (4/4)
7. Recollections of Spain ORO VALLEY, AZ (4/4)
8. Argentine Memories ORO VALLEY, AZ (5/5)
9. Amazing Asia – Vietnam & Cambodia Oro Valley, AZ (3/3)
10. AZ Snowbird Green Valley, AZ
11. 7 Cs of Arizona Oro Valley, AZ (7/7)
12. Westworld Oro Valley, AZ

The Status button on a clue page let’s members indicate when they found a letterbox... or attempted to find one. You should only mark a box as attempted when you feel confident that you found the location, but the box wasn’t there. Getting lost in the woods doesn’t count. :-)