Yes, you should absolutely book all of these things in advance. July is very busy in Ireland and booking in advance will allow you to see and do what you want at your preferred time.

You can rent a car, take the bus, or take the train. In a car it takes about 1 hour 45 minutes, bus takes about 2 hours 20 minutes, and train takes about 2 hours 18 minutes.

You can rent a car from the Dublin Airport. Just remember, you'll be driving on the opposite side of the road. Apple Maps work very well.

You can take the bus from Dublin Airport or Dublin City Center. $14-27 per ticket. I suggest you look up the bus routes on https://www.rome2rio.com/. You should book your tickets in advance.

You can take the train from Dublin City Center. $17-25 per ticket. I suggest you look up the train schedule on https://www.rome2rio.com/. You should book your tickets in advance.

If flying directly back to the US from Dublin, we advise you arrive at the Dublin airport 3 hours early because you will need to clear US customs. US customs is after the initial security and there is another long line you need to go through before you get to your gate.

Irish people are very friendly and love to meet new people. Don't be afraid to strike up a conversation or ask for assistance.

Waterford Castle Lodges- Guests stay on the island in the three bedroom lodges. You can book the lodges by emailing info@waterfordcastleresort.com or calling +353 51 878203 and mention that you are with our wedding as we have a special rate. The Granville Hotel- The Granville Hotel is in downtown Waterford City. It's about a 15 minute drive to Waterford Castle. Transportation to Welcome Party and Wedding are not arranged, but taxis are readily available.