The following links contain some real-world inspiration for some of the fictional areas of Hollygrove.
Atlantic White Cedar Swamp Trail – Wellfleet, MA (Cedar Swamp Trail, Hollygrove)
Flight Along the Atlantic Coast of Wellfleet, MA (Hollygrove)
Great Island Trail – Wellfleet, MA (Curiosity Point)
Lieutenant Island Bridge Flooded (Devil’s Backbone – Access Road, Hollygrove)
What’s in the water? Video of Sea Life off of Cape Cod