The story of the Lake Toba in North Sumatra, Indonesia.

In the region of Sumatra lived a very hard-working farmer. He lived alone. Every day he worked on lading and fishing tirelessly. This was done to meet the needs of everyday life. One day the farmer went to the river near his home, he intends to fish for lauknya today. With only armed with a hook, bait and fish, he went straight to the river. Once when he got in the river, the farmer immediately threw the hook. While waiting for the hook edible fish, the farmer prayed, "O Allah, I hope I can fish a lot today". Moments after praying, he throws a hook was apparent wobbling. He immediately pulled the hook. Farmers are very happy, because the fish he gets very big and beautiful.

After a few moments staring at the fish catch, the farmer was very surprised. It turns out the fish he caught was able to speak. "Help me not to be eaten Pak !! Let me live ', cried the fish. Without much Tanya, fish catch was immediately returned to the water again. After restoring the fish into the water, the farmer increases surprised, because suddenly the fish turns into a very beautiful woman.

"Do not worry sir, I will not hurt you," says the fish. "Who are you? Are not you a fish ?, asked the farmer. "I was a princess who was cursed, because it violates the rules of the kingdom," the woman said. "Thank you have freed me from the curse, and in return I am willing to make you a wife", she said. Farmers agree that too. They then become husband and wife. However, there is a promise that has been agreed, that they should not tell that the origin of the Princess of fish. If the promise was breached there will be a terrible disaster. After a while they get married, farmer and his wife finally happiness increases, because farmer's wife gave birth to a baby boy. Their son grow into a child who is very handsome and strong, but there are habits that make everyone wonder. The boy was always hungry, and never feel full. All food rations to devour without remainder.

Until one day the farmer's son was given the job of mother to deliver food and drinks to the fields where his father was working. But his job is not fulfilled. All the food was supposed to father dilahap out, and after that he fell asleep in a hut. The farmer waiting for the arrival of his son, while holding hunger and thirst. Unable to stand the hunger, then he went straight home. On the way home, pack a farmer saw his son was sleeping in the hut. The farmer immediately woke her. "Hey, wake up !, shouted the farmer. 

After his son woke up, the farmer immediately asked his food. "Where's the food for the father?", Asked the farmer. "It is finished and I ate", replied the boy. With a high pitch that farmers immediately scold her son. "Children do not know diuntung! I do not know myself! Basic young fish !," vituperation the Farmer unknowingly had said abstinence from his wife.

After farmers say these words, instantly son and his wife vanished without a trace and trace. Of former stamping his feet, suddenly menyemburlah water was very swift. Water overflowed very high and wide to form a lake. And finally, forming a lake. The lake was eventually known as Lake Toba.