Please note the above coordinates are NOT for the cache itself. You do not need to visit the location to obtain any information, it just serves as a reference point.
All you need to find the actual cordinates is solve the little puzzle below:
RVGLUVV ARZGJHP DHVVETF PANMJUP DILGQJP
RVGLUVV ANZGJOP RHVVTTF PHNFJUP DIIGFJP
SXVSMKR SNAQBAS GIRBISX MFLZSLF FYFAZRD
SXVTMKY SNOQBAN EIRBIDX MELGSLF FREAZRD
WCIBCTR KAKFRTS QUIMZNZ NAGSYPT NVXCSPT
ECIBCTS KAFFRTO QRIMZTZ NAGYYTT NVWCOPT
SHWSSMS TRVSTQK MASADYJ BGHRIMQ RAQHUDD
SHDSOMS TTVSTQK MASSDYI BGXRIHQ RUQHNDD
CNSRUGE HTSVONE VXLWDPI POSTOXD UQXQYHI
CDSRRGE HTSEOND VXLWAPI POSNODD UQFQYOI
VGBUGAS LCVGNOJ LGRGZKY PICOJPG ZWVGGZJ
RGBUTAS YCVGSOJ LERGZVY PECONPG WWVGGEJ
EVOPKGL HYHXZLD FEJLLNR RQDPQWX VLJUXTN
EVSPKTL HFHXZLO FEULLRR RDDPEWX VLGUXTR
LUPZZDY TFPEKSH QUFGRWG FGEDZHJ GHTWQGG
LEPZZEY TSPEKSF QIUFRWG FGEDTHY SHIWQGG
DBBWNKQ MZFMFWD NXYWQUP BGFNLDC UWJCWZI
DBXWDKQ MZFMOWT NXFWQUO BUFRLDC UWJHWZU
OKGPYHO XLCAUCB ILMBMWL NBODGRE SNAQBAS
NKGPYHD XRCAUEB IDMBMWA NNODDRE SSAQBIS
GIRBISX MFLZSLF BNRKTWW JLPNHAL MEHWFJF
GIXBITX MYLZTLF BNWKTOW JLPNHAL MEHWFJF
You can check your answers for this puzzle on GeoChecker.com.
Be careful when retrieving the cache as the rocks are loose at the final location and can get slippery. You also have to watch out for the tide.
You are looking for a bison tube with log. You will have to bring your own pen.