For the first time in 3 and a half years, the 6-night, 8-day trip will take you to 5 cities in 3 countries, centering on Paris. On the 4th day, the next day after returning from London, I will head to Nice from Lyon Station in Paris on the TGV LCC version train OUiGO. It was my first time visiting the South of France, but it was full of happy energy, and it really felt like a summer vacation.