Travelled up to day from York and was exhausted when I reached Stena at Cairnryan. I was hoping to park overnight but hey what? No way they told me to P... Off and come in the morning for my ferry. Most unhelpful and as far as they were concerned I could park anywhere but not on their property. So if you've booked with Stena don't be expecting to park overnight. I won't be booking with them again. They had a don't care less attitude. I'm not impressed to say the least.