If you're around Pamplona, with a car and don't know where to spend the night, check out this hostel. It's less than 30 minutes away from Pamplona. The people running it are amazingly nice and the prices very reasonable. The only prob is that you might run into a group of kids staying over. That's what happened to me but still, it wasn't that annoying at all. And a tip: they clean the showers in the morning. You can rent towels and sheets there, have breakfast and also there's a bar where you can have a coffe in the afternoon...