When we hid the caches, we walked out on the blue trail and back on the orange trail. It makes for a nice loop. But, you can choose your own plan of attack.
The cache is off the trail a bit in a dark hemlock forest. It is a film canister, hanging in a hiding spot.
A map of the trail system can be seen here: http://lrct.org/wp-content/uploads/2016/05/Center-Harbor-Woods.pdf
The trails are often close to roads, but please, you must park in the designated parking area on High Haith Road. Parking along any of the roads and bushwhacking into the trail system is not permitted.