Sir, – What a wonderful photograph by Aaron Pierce of the mighty wave in Sligo (Front Page, March 6th). However I am intrigued that it was "first surfed in 2010". How is this possible? To paraphrase Heraclitus, "you can't step twice into the same wave" ! – Yours, etc,
HILARY CARR,
Dale Road,
Stillorgan,
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Co Dublin.