Nalumanikkattu is a place in Kottayam district, Kerala that is being used as a model for sustainable tourism. It is located below sea level and used for rice cultivation, providing livelihoods for local people and organisms. The area is used for farming activities like rice cultivation, fishing, duck rearing, and cattle farming. It has become an evening tourist spot due to its natural beauty and soothing environment. Sustainable tourism practices are followed where no plastic is used and the environment is kept clean to appreciate nature.