Huge and Iconic venue which hosts many major events from Concerts to Sport. Visit the GAA museum for a great experience and check out the views from the Sky Tour. A must see sight when visiting Dublin
Conference. The guy that served coffee must have been the most intimidating, vicious person I have ever experienced working within service and catering. Remarkably unpleasant. But a great venue :)
There is nothing like being in Croke Park, especially the first and third Sundays in September (All IrelandHurling Final the first Sunday; All IrelandFootball Final the third Sunday).
For all concerts and big match days see local accommodation specialists Almara Accommodations Dublin (free finders) http://www.dublinaccommodationsalmara.webs.com to check 'real time' beds
U2 played here several times! Only reason i would go would be to see them here again. But they won't be playing here again after the way the neighbourhood treated them the last time!