Hi J
The irish parachute club is about 50min from Dublin City by car. (a lot longer by public transport). As people said there is a boogie running for the last 10 days in July. They are bringing over a skyvan, 2 dorniers and a caravan. There will bigway camp and coaching, I think members of babylon freefly team are coming for coaching also and wingsuit and crw coaches also. Plus loads of parties and beer.
Check out
http://www.irishskydivers.com
for contacts and arranging possible transport or lifts if you are in Dublin
and boogie information on
http://www.skydive.ie/boogie2009.html
If you are not around for the boogie the club is open Thursday - Monday but can be quiet enough on the weekdays.