Lake Toba (Indonesian: Danau Toba) is a lake and supervolcano. The lake is 100 kilometres long and 30 kilometres wide, and 505 metres (1,666 ft) at its deepest point. Located in the middle of the northern part of the Indonesian island of Sumatra with a surface elevation of about 900 metres (2,953 ft), the lake stretches from 2.88°N 98.52°E to 2.35°N 99.1°E. It is the largest lake in Indonesia and the largest volcanic lake in the world.[1]
Lake Toba is the site of a supervolcanic eruption that occurred 69,000-77,000 years ago,[2][3][4]a massive, climate-changing event. The eruption is believed to have had a VEI intensity of 8. It is believed to be the largest explosive eruption anywhere on Earth in the last 25 million years. According to the Toba catastrophe theory to which some anthropologists and archeologists subscribe, it had global consequences, killing most humans then alive and creating apopulation bottleneck in Central Eastern Africa and India that affected the genetic inheritance of all humans today.[5] This theory however, has been largely debated as there is no evidence for any other animal decline or extinction, even in environmentally sensitive species.[6] However, it has been accepted that the eruption of Toba led to a volcanic winter with a worldwide decline in temperatures between 3 to 5 °C (5 to 9 °F), and up to 15 °C (27.0 °F) in higher latitudes.
Day 1 : Medan – Parapat (L/D)
Landing at Polonia international Airport Medan, lunch at local restaurant. Heading to Parapat, enroute view the palm and rubber plantation and pass some small city like Tebing Tinggi and Pematang Siantar, stop by Paten Shop House – who selling Siantar special food. Arrive in Parapat then transfer to ferry, heading to Samosir Island. Spending the night and dinner at the Hotel in Samosir Island.
Day 2 : Samosir – Parapat (B/L/D)
Breakfast at the hotel, the exciting tour of samosir will be arranged after breakfast. Visit to Tomok village where the stone tomb of King Sidabutar is found. Back to Parapat for lunch with an hour beautiful trip. Check in to the Hotel. Free Activities.
Day 3 : Brastagi – Medan (B/L/D)
Heading to Brastagi after breakfast. Enroute visit to Simarjarunjung, Simalungun Batak Long House which is called Rumah Bolon (long house) at Pematang Purba and Sipiso-piso Waterfall, arrive in Brastagi. Lunch in a local restaurant and visit Gundaling hill to watch active volcanoes, they are mount Sibayak and mount Sinabung, and also visit Fruit Market. Afterwards, dinner at local restaurant, and heading to Medan around 65 km through mountain road. Check in to the hotel.
Day 4 : Medan City Tour – Airport (B)
After breakfast, tour will sightseeing to Rahmat Gallery Wild Animal Museum in Medan, and transfer to airport.