Some things to do.... all depends on your interests.
Firstly, from today's paper, some general spiritual retreat options: http://www.irishtimes.com/newspaper/tra ... 68759.htmlIn Dublin.
First stop must be the National Museum:http://www.museum.ie/en/intro/archaeolo ... useum.aspx
Bring your well charged-up credit card for the book shop at the museum.
Not far away is the Royal Irish Academy. Ask very nicely, and they might let you see the Book of Ballymote and other treasures.http://www.ria.ie/Library.aspx
Then the Trinity Library for the Book of Kells and other treasures: http://www.tcd.ie/Library/manuscripts/book-of-kells.php
For a bit of "time out" from the mainstream tourist trail, go for lunch at the Chester Beatty Library. http://www.cbl.ie/
Want to meet people socially? Try here for dates: http://paganfederationireland.webs.com/ ... pagans.htm
General info here: http://www.irishdruidnetwork.org/index.htmlFurther afield.
A tip about Newgrange. There are several tour options. Most people go for a visit to the main site. Your time may be limited, so go for the Knowth option. Much more interesting and fewer people.
Glendalough makes a great day trip: http://www.sacred-destinations.com/ireland/glendalough
You may get some visit ideas here: http://www.thinplaces.net/thinplacestour.htm
Even more ideas here: http://www.megalithicireland.com/
If you have time, go North: http://www.armagh.co.uk/Visitor-Informa ... ables.aspx
Or a bit West: http://www.rathcroghan.ie/