There are at least 4 important places to go on the island:
The stone chairs of siallagan
Simanindo batak dance
Makam raya sidabutar
These tourtrips can be done easily in 1 day. We can also aragne tour trips in the north sumatra region. Depending on the time you have available we can work out a tour specific to your needs. Tobavillage inn owns a 2 minibusses that can be used for these tours.