The event will be held in the ever popular venue for geocaching events:
FOAM Cafe, Strand Street Great, Dublin 1
From
6pm - 9pm on Friday, July 3rd
Locals and visitors alike are more than welcome!
Oh I almost forgot, there's a Groundspeak souvenir for your profile that you can earn by attending an event between July 3rd and September 2nd, as if you needed another reason to come 
