SUBJECT LINE: Fifty Boston-area summer recreation sites

Water Country in Portsmouth, N.H. (603-427-1111) is the titan of tubes in New England. Or you can take a slide at Island Kingdom at Six Flags in Agawam (413-786-9300). If plummeting down 200 feet of wet PVC pipe isn't your scene, visit Breezy Picnic Grounds and Waterslides in Douglas (508-476-2664); swim in the Whitins Reservoir while the kids ... ................
................