Hi, I just bought the Eurostar standard ticket from Paris to London for this summer. As it was hectic when I was doing the booking, I neglected to choose the seats I wanted. I was given coach 17 and I just learned that it’s at the end. Besides, I need a seat that facing the journey direction so I won’t get nauseated. Can I still change the seats via the ‘manage my booking’ portal. Do I need to pay extra charges for it?
I probably have around 5 or 6 hours in Paris before boarding for the late evening’s Eurostar. Any recommended nearby place to pass our time there?