If you're travelling to Sumatra, I highly recommend to take the time and visit Lake Toba and places around there!
If you're planning on going there you'd better book a homestay or a hotel in tuk-tuk! Since it's the touristic area, most hostles, homestays, reataurants and cafés are located here!
We went to tuk-tuk from berastagi but you can also go from Medan! both ways are almost 4 hrs by drive. Since there was no public bus from where we stayed to there, we took a touristic bus which came and pick us up at the homestay! We were 5 people in a big car except for the driver (like a shared taxi)! He dropped us off in Parapat and from there we took a ferry to tuk-tuk!
Almost every couple of steps in tuk-tuk, there are places to rent you scooters and motor bike! If you're familiar with how to drive, it's really great experience! To take the scooter and ride around the island and also main land (if you have time)! We took the road through the forest! Even though it was like 45 minutes longer but it is so worth the ride!
On your ride you get beautiful views of the Lake! Just be very careful with the driving and with the mosquitos!More