GC2X0VV Swan Lake (Unknown Cache) in Ontario, Canada created by Go Play Outside
How To Puzzle Cache, Second Edition: Long, Cully: 9780997348897: Amazon.com: Books
The Dragon Puzzle - One Geeky Geocache
Don't Forget to Bring Your Brain — Antron's Puzzle Box #2 (GC40M7T) — Geocache of the Week – Official Blog
Fun puzzle caches : r/geocaching
How to conquer a puzzle lovers heart – Official Blog
Hidden Puzzle Cryptex Geocache - YouTube
Found this incredibly cool and well made multi-stage puzzle cache out in West Virginia : r/geocaching
Geocaching on Twitter: "If you call a payphone in the middle of the forest, does it make a sound? No need to worry about getting a busy signal when PAF (phoning