Close to Pangururan, just west of Pulau Samosir, rises Pusuk Buhit (1981m), the holy mountain sacred to Batak creation myths. An ascent makes for a straightforward day trip and there are spectacular all-encompassing views of Danau Toba from the summit. It’s about three hours to the top and two hours down; it’s best to start early. It's around a 1½-hour drive from Tuk Tuk.