Main Stay Cottages & RV Park Share: Lodging Main Stay Cottages & RV Park Visit Website 66 Sargent Street Winter Harbor, ME 04693 (207) 963-2601 Hours: Open May-October About Map About One to four bedroom oceanfront cottages with decks, fireplaces, queen beds, and kitchens. 10 oceanfront RV sites with electric, water, and sewer hookup. Wifi. Next to Bar Harbor Ferry. Open May-Oct. What's Nearby? Distance: 5 10 15 20 25 50 mi.