Danau or Lake Toba is the largest volcanic lake in Indonesia, second largest lake in the world after Lake Victoria in Africa. It is also a very deep lake at 450m depth. Indonesian Tourism Board, as instructed by the President of Republic of Indonesia, is putting an enormous amount of resources and funds to make Lake Toba a better tourist destination, with much improved facilities. Kuala Namu International Airport (WIMM), a new airport open in mid 2013, is where you fly into when visiting Lake Toba. Alternatively, you can fly into Silangit Domestic Airport (WIMN), a newly open airport too but please clear CIQ in WIMM or another nearby airport.