Champhai District is one of the eight districts of Mizoram. The district is bounded on the north by Churachandpur district of Manipur state, on the west by Aizawl District and Serchhip district, and on the south and east by Myanmar. Champhai District occupies an area of 3185.83 square kilometers. Champhai town is the administrative headquarters of Champhai District.
Serchhip District is one of the eight districts of Mizoram. Serchhip District occupies an area of 1421.60 square km. Serchhip town is the administrative headquarters of the district. Serchhip District came into existence on 15th September 1998, being carved out of the larger Aizawl District.
There are quite a number of places in East Mizoram. East Mizoram is the best place for sports tourism, adventure tourism and nature tourism. Blue Mountain is the highest peak in Mizoram. The Blue Mountain (Phawngpui) is situated in Chhimtuipui district overlooking the bend of the river Koldyne (Chhimtuipui) close on the state's border with Myanmar. The peak, 2,157 meter in height and encircled by bamboo groves at the top where there is a level ground of about 200 hectares offers a grand view of the height hills and the meandering undulated valleys. The woods around are home to various species of beautiful and rare flora and fauna. Pukzing Cave is the largest cave in Mizoram. It is situated at Pukzing village near Marpara in the Aizawl district.