This is NOT a ‘grab-it-and-run’ cache.
First go to ‘Treasure Island’ at the given coordinates where resolve the last three digits of northing and westing coordinates for the final cache site. Note re final cache coordinates: Northing is 37º 08.xxx; Westing is 008º.38.xxx’. Then, find the cache, avoid any vipers and enjoy the views. To replace the cache use the tool provided. Eureka! Simple, isn’t it??? Or is it???