Summer travel destinations: Dr. Beach's 10 best U.S. beaches in 2010
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7. Coast Guard Beach, Cape Cod, Mass.( Margo Tabb / Associated Press )
This is one of six beaches in Cape Cod National Seashore. It's a popular swimming spot but also offers places for bird-watching and seal spotting.
Coast Guard Beach info: www.nps.gov/caco/planyourvisit/coast-guard-beach-eastham.htm
Cape Code info: www.capecodchamber.org/