Department of Geography, Govt. Hnahthial College observed World Water Day 2025 on 22^nd March 2025 at Mat River. Mat River is one of the important rivers in Mizoram with a total length of 141.5 kilometers (10^th position in length). Kawrlungtuk, one of the most beautiful rock Castles in Mizoram is located in the river. Students of the department visited the river and studied the rock structures formed by the river water on the day. Sir CS Vanlalkunga, Asst. Professor and Dr. Lalrinpuia Vangchhia, Asst. Professor, Department of Geography guides the students.