Prospect Harbor Soap Company Share: Shopping Prospect Harbor Soap Company Visit Website 4 Duck Pond Rd. Winter Harbor, ME 04693 (207) 963-7598 Hours: Open 7 days a week during the summer. About Map About Hand crafted skin care and aromatherapy products. All products are created on site. Be the first to try our weird and bizarre experiments!! What's Nearby? Distance: 5 10 15 20 25 50 mi.