Biking Shackford Head State Park Cobscook Bay State Park 40 South Edmunds Rd, Dennysville, ME 04628 | (207) 853-4644 At this state park, there are a variety of activities available all year long, including cross country skiing, snowshoeing, winter camping, hiking, and biking. Passamaquoddy Bay Bicycle Tour 966 US-1, Perry, ME