(181230) -- CHITWAN, Dec. 30, 2018 (Xinhua) -- Mahouts cross the Rapti river to return home after collecting food for elephants in Sauraha, a tourism hub in southwest Nepal's Chitwan district, Dec. 30, 2018. (Xinhua/Sunil Sharma)more(181230) -- CHITWAN, Dec. 30, 2018 (Xinhua) -- Tourists cross the Rapti river in a boat in Sauraha, a tourism hub in southwest Nepal's Chitwan district, Dec. 30, 2018. (Xinhua/Sunil Sharma)more(181230) -- CHITWAN, Dec. 30, 2018 (Xinhua) -- Elephants cross the Rapti river in Sauraha, a tourism hub in southwest Nepal's Chitwan district, Dec. 30, 2018. (Xinhua/Sunil Sharma)more