To find this cache, solve the cryptogram below. It's a simple substitution cipher, albeit with a twist.
AT MIQP TM IORN D NAI QJMIOT AN XTIRN DNA RJ SIOF NRITA N IFN AIOIF TNUN DNA XTITANA JAN IORJS
Note: The solution and location for this cache changed as of Jan. 31, 2016. If you solved the puzzle before then, you'll need to solve it again to find the cache.
You can park right next to the cache. No need to cross the fence.
The original posted coords for this cache were in Lake Washington, as it was one of 54 puzzle caches spelling out "WSGA" in honor of the 10th anniversary of Washington State Geocaching Association in 2012. In August 2017, the posted coords were moved to the current location when the WSGA cache art was retired.