This Sri Lankan eco-resort has a very noticeable eco-tourism theme. It sits near its namesake river bordering Yala National Park, one of Sri Lanka's best nature adventure destinations. This is elephant country, and pachyderms roam freely through the park, as do a variety of other interesting animal species. Kumbuk celebrates Yala's headlining mammal with a unique design. Dubbed the Elephant Villa, the resort's most stunning structure is made of wood and topped with a straw roof that sways in the breeze. The "elephant" is not just a clever name, however. The straw roof of the two-bedroom villa is actually shaped like an elephant (with a trunk, ears, eyes and all). Kumbuk also has a luxury "treehouse" and a main lodge that is designed to look like a classic Sri Lankan farmhouse.