In western China province of Sichuan, the hiking trek around Mt Gongga (24,790 feet) requires about 12 days. The trek looping around Mt Gongga crosses three high-altitude passes. It passes through amazing forests and also Buddhist monasteries. Since there are no markings along the route, a guide is highly recommended.
Overall, Mt Gongga Trek is the 8th most popular hiking trail of all 21 hikes in China.