The vast cave network snakes through 20 hills. While some travellers enjoy drifting through the caves on rowboats with their subdued guides, others find the whole experience – coloured lights, cheesy music, tour groups – kitschy.
Lónggōng is 23km south of Ānshùn and an easy day trip from there. Local buses (¥10, 40 minutes) depart every 30 minutes from Ānshùn's east bus station from 7.30am. Returning, buses leave until about 5pm.