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. DFW airport Grapevine, TX
2. Versailles 1971 Miami, FL
3. MGA airport Managua, NIC
4. RNI airport Corn Island, NIC
5. Cripta Esteli, NIC
6. Barena beer San Lorenzo, HND
7. SAL airport San Salvador, ELS
8. Regia beer San Salvador, ELS
9. Their Bodies Our Souls San Salvador, ELS
10. Cul-de-sacrilege Toronto, CAN
11. Bookworms: Stella (2) Lunenburg, MA
12. Bookworms: Edgar (1) Marlborough, MA

More new letterboxes

1. MIA airport Miami, FL
2. Houses of Hogwarts Bowie MD, MD (6/6)
3. Bookworms: Stella (2) Lunenburg, MA
4. Clear Brook Burlington, CT (2/2)
5. Paul Bunyan's Giant Toe - Place By Bristol Troop 6 Bristol, CT
6. Ziva's Walk CT, CT (2/3)
7. Back in Time Tour - #10 Yaquina Bay Lighthouse Newport, OR
8. Braemore Butterfly: Cabbage White Guilford, CT
9. Climax Canyon Raton, NM
10. Hoist The Colors Irwindale, CA
11. Maeveen Behan Desert Sanctuary Tucson, AZ (3/5)
12. Texas Alexander Richards, TX

Did you know that it’s really easy to embed a video in an LbNA clue? Simply create your video and upload it to youtube. Once it’s there, click on Share then Embed, copy the code that it provides, and then paste that into the letterbox clue area on LbNA. Done!