The entire loop is about 3.5 miles.
The first half or so is on the Paumanok Path. The rest is on
other established trails with a small portion being along a
road if you choose not to bushwhack. Plenty of room along the
grassy shoulder so it's completely safe. One of these caches
has a nice FTF prize I don't remember which. 
Cache is a small Lock & Lock hidden about 20 - 30 feet
from the Paumanok Path. Should be an easy find. Hint is a dead
giveaway.