Finally found 10 mins and removed the engine cover, it seems that it is indeed the valve cover that is leaking (passenger side), thanks NeedsWings!!

Here are photos of the leak, just so you can confirm that I am correct (or rather that NeedsWings is correct )










So, searching the forum, it seems like this is an easy enough fix.

However, my car is under guarantee, but it is a 200 mile round trip to take it for them to do. Woud you guys suggest the DIY route or the road trip??

Thank you all again!!