This cache is a reverse wherigo located in Spencer. You must use the below cartridge or certain available online tools in order to obtain the coordinates for the cache. The information below is necessary in order to obtain the cache coordinates.
Reverse Wherigo cartridge link
The following six-digit numbers are needed for completion of this wherigo:
004343
828923
706581
Note: The beach area is only open to Spencer/E. Brookfield residents from July to August. You will not need to go into a "Resident Only" area to retrieve this cache.
Congrats to BlackstoneVal and ~Marvalus for FTF!