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