We went to Paris on Wednesday. There we looked at Canal Saint Martin. It was convenient because it is close to where I have my violin lesson. When I had my violin lesson, my grandma and my brother went back to the canal. They saw the canal locks work (They wanted me to see it some other time).
The canal was built in the 1800's. There were long, high bridges to connect the sides.
It took a longer way to get back because there had been a serious accident at Bagneux, a station that we pass on the RER B to get back to Bures.