Kettuvallam is a house boat widely used in Kerala, India. These have thatched roof covers over wooden hulls. At present the traditional kettuvallam is mainly used for promoting Kerala tourism.
In the Malayalam language "kettu" means tying and “vallam” means country boat – the two together make the local name "kettuvallam”. Each houseboat is constructed using the ancient principles and techniques of boat building by the local carpenters using ‘Anjali` wood. Coir ropes are used for tying the wooden boards together.