Ahopsan is a mountain peak in Busan with a hiking route that runs from Hoedong Reservoir to Cheolma. The walk from Hoedong to Cheolma takes about three hours and follows a path overlooking Hoedong Reservoir. The forest roads around the mountain have better surfaces and views than the hiking trail, and can be used for walking or MTB riding. The area near the summit is steep, so the descent is rough.