This is the most beautiful trail in the Seacoast of New Hampshire. It follows a network of beaver ponds from Durham, NH, to the shores of the Great Bay estuary. The route is well marked, and it starts and ends at the red gate at the end of Longmarsh Road in Durham (there is a small parking lot there). The turnaround point is the southern terminus of the Sweet Trail at the Great Bay estuary and is marked with a granite tablet honoring Cyrus and Barbara Sweet.