We were just there. It is a delightful little town with a Heritage Center about all the emigration in the 19th and 20th centuries. The church is way up a hill, so this shot is a hefty hike. The Queenstown Series is set here.
I just had to look this cathedral up. It's in a town called Cobh, Ireland which is south east of Cork on the southern coast. This town was the last port of call for the Titanic in 1912. The water you see is Cork city's harbor.