Cape Cod is changing daily. Each tide moves thousands of cubic yards of sand and each storm makes your map even more useless. Barrier beaches protect much of the coast but they are also coming and going almost daily. Chatham is the town at the elbow of the Cape. From here you go east into the Atlantic or south into Nantucket Sound. The actual corner has a great deal of sand around it; there are shoals, bars, beaches, and barriers. There is one new beach that is already several miles long and there are many places where even shallow-draft boats can no longer travel. The fishing fleet is always on the move to avoid sand and low tide blockages.
But is still is a pretty good place for the migration of shorebirds (waders, sandpipers, plovers, godwits, turnstones, knots and more) to be observed and the species tallied. There is a U.S. Fish and Wildlife building on this corner and they are involved in managing and understating that Monomoy National Wildlife Refuge, a wilderness area. There is a tern colony of over ten thousand pairs here and the threatened Red Knot passes along this coast in reasonable numbers. The numbers are reasonable when seen as a percentage of the total population but the number are dramatically lower than twenty years ago – dramatically.