St Nic's is situated in the marketplace, right in the centre of Durham (the red location marker on the map below).
If you're driving in to Durham, the nearest car park is the Prince Bishops car park (a 2 minute walk from the church). Click here for a full list of alternate car parks within the city. If you're visiting from outside the city, a park and ride scheme also operates from Monday to Saturday between 7am and 7pm.
The nearest bus stops are also shown above. There are very regular buses during the week with a more limited service on Sunday. See this journey planner for more details. It is a 5-10 minute walk from the bus station on North Road to St Nics, but many buses will also stop at Claypath or on Leazes Road.