Just to confirm that I have access for the group to the maritime museum on September 25.

This is the building, >> http://commons.wikimedia.org/wiki/File:Mariners%27_Church.JPG < As there are only two tall spires in Dún Laoghaire, you are sure too find it 

On Google Maps: see here  >> http://maps.google.com/maps/ms?num=1&t=h&ie=UTF8&hl=en&msa=0&msid=117952125113486254888.00047f1ce1b82c76371ca&source=embed&ll=53.292073,-6.131919&spn=0.001122,0.00228 <<(It was a church, so look for the cruciform shape)

The Kingston "Minotel" is to the east (right), on that map; the DART rail-service is north-west 

- hope to see you all - ClemMcGann.