Julius Caesar is known to have used the earliest and simplest
substitution cipher. This cipher is now known as the Caesar cipher.
To encrypt a word or message you just shift each letter to the
right X places in the alphabet, where X is the key. To decrypt, you
reverse the process. For example, if the key is 2, the word DOG is
encrypted FQI. If the shift produces a letter past the Z, you just
continue at A, and when decrypting, if the shift goes past the A
you continue at Z. For example, if the key is 3, ERB decrypts as
BOY (the B back 3 spaces is a Y). That's all there is to it. The
ROT-13 (short for Rotate 13 spaces) cipher used by Geocaching.com
for encrypting and decrypting hints and logs is a Caesar cipher
with a key of 13. It has the unique property of being reciprocal,
i.e. encryption and decryption are identical. That's because going
forward 13 spaces in the alphabet produces the same letter as going
backward.
To find the actual cache location, solve the Caesar cipher
below.
WKH WSHZAPJ WIHNUCHYL NX EPQBM
QBA UZ NBY KTWP KTWP TK F FVDBMZQUVT
I parked at the posted coordinates on a summer Sunday, but
that's a private school parking lot, so it is not recommended
during school days. There are closer places, and certainly there is
street parking within easy walking distance, but it is not legal to
park right at the cache. Part of the challenge of this cache is
finding the best place to park. Park legally and stay off the
private property beyond the cache.
The cache is a smallish full-size container. It has a few trade
items in it.