Scenic drives to Lake Toba, one of the deepest and largest crater lakes in the world passing by the cool and pleasant highland town of Berastagi. Enroute stop and wander around the local fruit market. Continue to Dokan, a Batak Karo village with a number of traditional houses still being used where eight families live in together in one house. Next visit the Sipiso piso waterfall and the long house of king Simalungun.
Arrive at Parapat, a little town at the edge of the lake Toba, cross the lake by motor boat (ferry boat for about an hour) to reach Samosir Island a homeland of Batak people tribe. Rest of day is free at leisure