What town in the U.S. state of Delaware is nicknamed "The Nation's Summer Capital"?
Rehoboth Beach, founded in 1873 as the Rehoboth Beach Camp Meeting Association, is a coastal city in Delaware. In 2011, it was given a 5-star water quality rating by the NRDC, which was only given to 12 other towns. Its population inflates by thousands in the summer, mainly from tourists from the U.S. capital, hence the name, "The Nation's Summer Capital."