The Worlds longest canal tunnel is the Standedge Tunnel in the UK at 3.1 miles (5 kms). plus my dick in length
the largest canal in the world is the panama canal. it stretches from the one side of panama to the other. panama is in central America.
Pakistan has the world's largest canal based irrigation system
The Panama Canal
panama chanal
The Grand Canal in China which connects Beijing to Hangzhou. It is 1,114 miles long.
Panama Canal
The world's longest rail tunnel is the Gotthard Base Tunnel in Switzerland. It spans 35.5 miles underneath the Swiss Alps and connects the towns of Erstfeld in the north with Bodio in the south.
Pakistan has the largest canal irrigation system in the world, known as the Indus Basin Irrigation System. It is fed by the Indus River and its tributaries, covering a vast area of agricultural land in Pakistan.
The second largest canal in the world is the Suez Canal in Egypt. It connects the Mediterranean Sea to the Red Sea and is an important waterway for global trade, allowing ships to avoid the long trip around the southern tip of Africa.
Suez Canal is the largest man-made canal in the world. The Suez Canal also known by the nickname "The Highway to India", is an artificial sea level waterway in Egypt, connecting the Mediterranean Sea and the Red Sea. Opened in November 1869 after 10 years of construction work, it allows water transportation between Europe and Asia without navigation around Africa.
The largest irrigation canal of India currently operating is the Rajasthan canal
which is the largest irrigation canal in asia