The Grand Canal of Venice, the main waterway of Venice, Italy. The natural waterway from St. Mark's Church (San Marco Basilica) to St. Chiara Church (Santa Chiara Church) is in reverse S-type, which divides the city into two parts. It is more than 3 kilometers (2 miles) long, 30 ~ 70 meters (100 ~ 225 feet), and has an average depth of 5 meters (17 feet), which is connected to many small canals. Most of the city's transportation passes through these waterways.