Our favorite is a local one has only been found by a few, which is such a shame. Probably in part because it was only our 2nd or 3rd find, and our first FTF, but we still love it, and wish we could find others as clever. It is a multi and true puzzle in the mountains of southeastern Idaho. http://www.geocaching.com/seek/cache_details.aspx?guid=92777974-aa8c-4866-9c8a-6e92b71449eb T-Canyon Road #7 - Cruel and unusual punishment. GC1Y3EW It is listed as a flashlight cache, and is meant to be done in the dark. each of the caches is a puzzle, located by colored reflectors on the trees at each coordinate. You need to have with you:
1. A good FLASHLIGHT, 2. A buddy to share the expierence, 3. A game cube (die/dice), 4. A copy of the periodic table, 5. A copy of the numeric values associated with the greek alphabet, 6. The number of pi to the 25th decimal. 7. A knowledge of Roman Numerals 8. Something to write with and on. 9. A calculator
10. Your favorite lucky charm.
when you do the puzzle, you collect letters, which as you sit and organize them spell "look up" where you will find you are right underneath a gallon jug hanging from a tree branch. Loaded with great swag for kids.
It's far enough into national forest to camp by, but close enough to a forest service road that you can easily hike there with kids.