they're known as the sons of neptune, a group of sea swimmers from scarborough, all in their 80s. they've been boycotted, arrested and the council even denounced them for ruining the town's reputation. but despite all that, they did eventually succeed in their long battle to stop raw sewage being pumped in to the sea. that story is now going to be turned in to a film. david sillito went to meet them. do you ever worry about what is in that water? you might know, i don't. but my son does. he told me not to. why?- i don't. but my son does. he told me not to. why? says that question. _ told me not to. why? says that question. is _ told me not to. why? says that question, is it _ told me not to. why? says that question, is it safe _ told me not to. why? 9" that question, is it safe to swim, is what it is all about. back in the 80s, scarborough was the scene of a long and furious battle over sewage. the sons of