Madam, - There was a time when I believed everything I read in The Irish Times, without question! Alas, no more. Why is there a six-hour difference between high tide in Dublin and high tide in Dún Laoghaire today (March 30th)? Please tell me it's something to do with plate tectonics so I can go on believing. - Yours, etc.,
GORDON BARRY
Dalkey,
Co Dublin