Taking the Eurostar from London to Paris was pretty easy once I figured out what was wrong with my seat reservation. Wrong company purchased from! All good. They sorted it out.
Traveling at 300km/h in a train
The speed of the train was quite impressive. I was curious and tested this using a speedometer app reaching nearly 300 km/h!
Upon arrival I wouldn't recommend hanging around Gare du Nord train station for too long...