The final cache is not too far away but you'll have to do a little orienteering to get to it. You don't have to buy a compass as these days you can use a compass app downloaded onto your phone. You will have to know your pacing to be able to estimate the distance.
Directions:
69°E for 115 feet
340°N for 48 feet
96°E for 38 feet
2°N for 77 feet
[The first measurement starts from the middle of the trail. Focus on trees that are lined up with the degrees and go towards them the posted distance.]