This geocache is a reverse wherigo located in East Cantabrigia, aka East Cambridge. You must use the below cartridge or certain available online tools in order to obtain the coordinates for the final geocache to sign the log and claim your find. The information below is necessary in order to obtain the final coordinates of the geocache container which includes the log.
Reverse Wherigo cartridge link
The following six-digit numbers are needed for completion of this wherigo:
303312
456806
626877
Congrats to janiva & essiva for the FTF, on the road!