Welcome (back) to the Bates Conservation Area! There are many miles of well-maintained trails in here, including several diverse habitats (pine barrens, swamps, white cedar groves, ancient pine groves, you name it!)
In order to find this Multi, you will have to walk through and visit various waypoints along the trails, gathering information. At each reference point, find a number, and use that number in the appropriate spot in the coordinates below.
N42 A.BCD W70 EF.GH
For example, if you find A to be 10, insert 10 into the A position of the North coordinate.
I recommend doing this loop clockwise (Bates Lane to Maxwell Trail to Carl Pipes Trail) so that the last stage puts you close to the final, which is a film canister. However....
Heres where the teamwork comes in. In order to obtain the final canister, a friendly height boost (Piggyback ride, stepping on someone else's back/shoulders, even someone strong just lifting you up). While it is technically possible to grab on your own, it is highly NOT recommended.
The final is the only physical container that I have hidden, the numbers waypoints should be easy to see and they are all pre-existing.
Enjoy.