SUBJECT LINE: Fifty Boston-area summer recreation sites

--Port Sea Dogs baseball game in Portland, Maine. (Globe photo / Bill Greene)--Tower Hill Botanic Garden in Boylston. (Globe photo / Evan Richman) --The Paragon Carousel on Natasket Beach, Hull. (Globe photo / Michael Robinson Chavez) --Butterfly Landing at the Franklin Park Zoo, Boston. (Globe photo / Mark Wilson)--Balloon adventures over New England. ................
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