The 'Coconut Cave', so-called for its domelike interior, is located about 7km from Gopeng. Nearly 2km of grottoes snake beneath the hills. Within, you'll find plenty of huge stalactites and gnarled limestone pillars to fire your imagination. Visits are by guided tour; choose from the easy 40-minute Golden Flowstone walk or book ahead for 3½ hour trails where you can expect to get wet and muddy – not for the claustrophobic.
If you don't have your own transport, many resorts in Gopeng arrange tours. Last entry 4pm.
