Round about 1980, 19 adults and children went to Barbados to celebrate the new year. We were with the Bullinghams, Powells and Stones. I saw the green flash as the sun set. The others could not see it and acused me of being crackers. When I got home I wrote to Patrick Moore who confirmed its existance by sending me his reply on a postcard.I photocopied this and sent it to our friends.
I celebrated my last birthday at The Green Flash restaurant in Sanibel, FGlorida. I started with half a dozen oysters.

Here is a good web site for finding loads about the green flash
http://mintaka.sdsu.edu/GF/