We hired TobaTransporter to provide transportation from downtown Medan. Don’t try to drive yourself – it’s not worth it. TobaTransporter provided a van and a guide and a very reasonable price, and that made the trip much more relaxing than if we had to drive in the traffic ourselves. We stayed on Samosir Island, at the Samosir Resort Villa, and really enjoyed our stay. We hired a local guide and speedboat to take us across the lake to a waterfall – well worth the extra cost.