Khoiyachhora waterfall is the biggest waterfall of Chittagong district which is located at Mirsarai. After reaching the highway from the village locals, following farmland, rail lines, the transparent Khaiyachara corridor filled with mountainous boulders and gravel stones, tourists can reach the bottom of main step after nearly an hour and a half. The height of this fall will be above 60 feet and the second waterfall will be about 40 feet in height. Then after crossing the lakes of blue water with big holes surrounded by intensive forests, tourists can reach the most beautiful and third waterfall which is about 120 feet in height. There are more steps of waterfalls have been found after that.