At the end of October @London was running a promo on Instagram with Eurostar trains and return tickets were just 39£, the only condition was that you had to return the same day. I've bought a ticket to Paris and was really looking forward visiting this beautiful city again.
One day is certainly not enough to explore Paris properly, but as I knew exactly where I wanted to go I've made most of it. My train left from London St. Pancras International at 7am and arrived at Gare du Nord in Paris slightly after 10am. It was a sunny day in Paris but Air pollution was really bad and Mayor of Paris decided to limit access for cars to the city center and public transport was free which was quite handy.
Anyway, I've had a lovely day and ten hours and over 40k steps later I was on the train back to London, tired but smiling and with the camera full of pictures. Here are some of them, hope you like them.