They are conventional small boats built of wood and modern ones, of fiber glass. Some are plank jointed and small ones are carved out of huge tree trunks. The smallest is the single man driven "Duck man's canoe" which can be lifted even with a single hand. Canoes occupying 4 or 5 people are paddled and bigger ones are driven with a bamboo poles. Backwaters of Alappuzha is a network of cohesive canals, watered rice fields rivers and lakes. These waterways are lengthy greenish by the side and serene. The incomparable ecosystem of backwaters is noticeable. Evening images of river mouths where freshwater from the rivers meets the seawater of the Arabian Sea ,is exceedingly attractive..