There is no parking available at the venue - more on that in a moment - which means you will be walking.
As you go through the gates you will see the Porter's Lodge on your right. The JdP is signposted to the left and this is where you need to head.
Follow the road. You will see the River Cherwell on your right and the main building of St Hilda's on your left. As you reach the end of the building there is a large area of grass on your left and the building at the far end of this is the JdP.
COMING BY CAR?
I would strongly recommend that wherever you are coming from, you use one of the many Park and Ride services available.