Looks like no guiness on tap at the Mill for St Patricks Day although there will be green beer. Up to you but if you want some Guiness on tap then best get to one of the city pubs a little earlier....
This year the plan is for me to be in Dublin on St Patrick's day. Flights + accom are booked... Been a few years since I've been to the Emerald Isle, and this time I'm making the effort to get up to Belfast as well.
Only a quick trip (4 days), and the train between Dublin and Belfast is yet to be booked, but of course it could be canned due to work prospects... if they ever occur!