Ireland is a beautiful country, but best explored by car. I remember taking a road trip through the famous Ring of Kerry. Every stop is an adventure. You see cliffs and beaches. You can explore castles and historic sites. When it rains, which happens often and one of the reasons why the area is so great and beautiful, then you can escape into one of the many pubs. You can enjoy fish and chips with the locals. Find a free map of the sites you can explore here.
American TESOL offers you ways to receive a certification in teaching English so that you can teach abroad and explore places worldwide. The following links are useful if you would like to know more about teaching English in Ireland:
Flickr photo by DaveBleasdale, Abbey Island, Ring of Kerry https://flickr.com/photos/sidelong/30323235195 shared under a Creative Commons (BY) license