Houseboats are olden day rice boats, which were used to carry the harvest from one part of the other place to go safely as eco friendly, no mechanized, centuries Kettuvallam / Kettuvallom (House Boat in Kerala) have been roaming in the backwaters transporting men and materials to different destinations. Due to its sheer size and shape, Kettuvallam can carry load, which is more than thrice that of a cargo truck. It was the important mode of transportation in coastal Kerala just because of its accessibility to the most remote areas. As time passed, the scene changed gradually. Motorized road, rail and air transportation scored over the slow and staid country boat, with people opting for speed over charm. During the time when road and rail transportation was expensive or unavailable,traders used this as a form of main transportation in the inland waterways. The boats had enough facilities for cooking and sleeping for the boatmen. Sometimes boatmen's families also accompanied them. A standard house boat, which could be about 100 feet long, can hold up to 30 tons, and that is as much as three big lorries can.[4] For the royalty these boats even became comfortable living quarters.[1]It was the important mode of transportation in coastal Kerala just because of its accessibility to the most remote areas. However, the scenario changed. Motorized road, rail and air transportation scored over the slow and staid country boat, with people opting for speed.

With Kerala becoming an increasing popular destination for tourists, Kettuvallam /Kettuvallom (House Boat in Kerala) have been given a new lease of life. A cruise in the backwaters of Kerala is a remarkable experience, an opportunity to enjoy and contain an unhurried pace of life. Floating along on cool tranquil water one can experience at hand the unusual representation of Kerala life. Now a day’s environment friendliness has become the yardstick gauging the efficiency of transportation. Kettuvallam /Kettuvallom (House Boat in Kerala) is not only economical but also non-polluting and environment friendly. It thus became imperative that this mode of transportation be developed further and encouraged.

The tourist demand for an experience to get a feel of the Kerala shores brought the Kettuvallam /Kettuvallom (House Boat in Kerala) back to the waters in the restored form as Houseboat. They were attracted by the simplicity and the originality of the form.

Kettuvallam /Kettuvallom /House Boat Basic Structure
The hull is a series of wooden planks, long cut and carved by the expert hands of the carpenter, tied together using coir with coconut fibers stuffed in between. Kettuvallam /Kettuvallom (House Boat in Kerala) is steered by two persons in deep waters by means of oars. Long bamboo poles or 'punts' are used to propel in shadow areas. Bamboo beams sprouting off on the sides are used as foot holds for the same a senior oarsman and a helper control the Kettuvallam by singing songs and chants for inspiration. A box of sand, a few bricks in interior facilitate cooking on lower racks, with storage on the upper ones. Food and necessary items are stored in shelves sleeping quarter is on the uppermost racks, which have the best ventilation and accessibility. The interior space can also be used for the same when there is no cargo. Fresh water is stored in earthenware pots.

The body of Kettuvallam /Kettuvallom /House Boat
Due to these difficulties it becomes necessary to make some changes in the form so that a comfortable cruise was possible for tourist. The body was redesigned and remodeled to adapt for the new demands and functions. Certain elements had to be added and others removed to make it good enough for comfortable cruise. Height of roof was increased to get sufficient bed room. A plank was laid all through the length to reduce the disadvantages of curved shape of the hull for walking and comfortable seating. Windows and other openings were provided for light, airflow and view. The entrance is provided in the center of the linear axis with a top hung panel, which was supported by poles on either ends of the Valavara.

Most of the latest designs have incorporated 1 bed rooms, 2 bed rooms, 3 bedrooms & 4 bed rooms with a modern toilet, a living space and kitchen. For fixing the toilet seats, shower tray and ceramic floor finish a concrete slab is laid at the floor level. The soil outlet of the toilet seats are taken through the hull and let out to the following water beneath, the water is stored in a plastic tank kept at the top portion of the Valavara taking connection to the kitchen and toilets. The pipes, tank and other synthetic materials are covered with coir or panambu to maintain the aesthetic quality of the eco friendly materials. The air cylinders, which are of the metal body, are fixed to the underside of the cantilevered platforms at the entry points of Valavara. These cylinders help to balance the structure on water reducing its tilting to the sides to a minimum.

Modern house boats have been designed to meet the Green Palm/Gold Star Certifications by the Department of Tourism, Government of Kerala, which has recently enacted regulations, stipulating the standards of Kerala houseboats or Kettuvallams

Colour and texture of Kettuvallam /Kettuvallom /House Boat
The colour of the Valavara is yellowish brown, which is the colour of the natural materials like panambu, coir and bamboo. It is a warmer colour comparing to the colour of the surrounding atmosphere. This gives a nice feeling of being inside the Vallam. Bamboo is used for the framework of the roof and splits of Bamboo are used for weaving mat for roofing. Bamboo poles are used for punting the Vallams. It is strong fiber and absorbs more carbon. Latest houseboats have modern interiors.

Furnishings in Kettuvallam /Kettuvallom /House Boat
The interior furniture are either of cane or wood, floor carpeted with coir mat or wood panels. Valavara of panambu, Bamboo and coir all colours matching each other but bring the depth and variations in vision.

Lighting inside the Kettuvallam /Kettuvallom /House Boat
Lights and the patterns of lights and darkness it creates can call our attention to one a rear of our room de-emphasize others and thereby create division of spaces. At night the traditional hurricane lamp is used to light the interiors. Usually each one is hung from the ridge of Valavara one at front, one at rear and one or two accordingly for the living spaces. And mostly for half of a month there will be moonlight, which gives enough light, reflected on water. Modern Kettuvallam /Kettuvallom /House Boat uses Generator sets or Solar power to provide lighting and other power requirements inside the Houseboat.

Eco friendly
Coco Houseboats Keeping bio-septic tank (eco friendly toilets), tested and certified by the Central Research Laboratory (CRL), fitted to collect the effluents thereby avoiding pollution to the backwaters