The Canal St-Martin is 4.6km long. Nearly half of its length was covered in the mid-19th century to create wide boulevards and public spaces. Today the canal is a popular destination for Parisians and tourists. Some take cruises on the canal in passenger boats, while others watch the barges and boats navigate the series of locks and pass under a variety of cast iron foot bridges. There are many popular restaurants and bars in this area, which is also a favourite destination for students.