Jet skis were not invented at the time you were enjoying your childhood summers. I spend many a grown-up summer's day on the beaches here. Occasionally, a jet-ski shows up. No problem. There's enough room for everyone. If you are really so keen to keep our beaches unpolluted you'd be up in arms about dogs on beaches. Worse by a country mile. And I have no dog in this fight. Nor a jet-ski.