Famous for its seven multicoloured boiling pools, the whitest allegedly home to the Kawah Putri spirit who’ll come if you call her, Bukit Daun makes for a challenging three-day adventure. It involves trekking through tobacco and coffee plantations and dense jungle, two nights camping in the jungle and a pit stop to wash in a small waterfall. Trips are arranged through Wild Sumatra Tours (two people US$350).

