May 26, 2011Dear Sir,Most of us are aware that HRH Prince Philip has spent many years service at sea with the Royal Navy.However the reference to the “Duck of Edinburgh Qualification” appearing in the ad (May 17) for the Spirit of Bermuda Summer Service Mission to Dominican Republic can at best only be described as quackers!One wonders what Peter Woolcock makes of it all?J & L BROWNKent, England