One of the coolest opportunities I had while I was an assistant in France was to go along on the class trip to York, England. For free! I went with 52 French high school students and 4 teachers, spoke more French than English, and discovered the unique charm (and the strong accents) of Yorkshire.
We took a coach from Douai all the way to York, with a trip through the “chunnel” on the way. It was so creepy! Nothing like I expected: the humongous coach pulled into what felt like a storage trailer along with an SUV, the door was shut, and we couldn’t see anything except the orange glow coming from the fluorescent lights inside our little storage unit. Thirty minutes later, there was light, and we were in England!