It's great to hear about the Tharu style cozy huts in Chitwan that are built with local materials to preserve the Tharu culture. Indeed, experiencing the local culture and traditions can add a lot to the overall visit to Chitwan, along with exploring the rich flora and fauna of the region. It sounds like a wonderful way to immerse oneself in the essence of the place. If you have any specific questions or need more information about Chitwan or travel in general, feel free to ask!