
The mountain can easily be reached from Berastagi, a fairly popular traveller’s haunt due to local volcanoes and Batak culture. Berastagi is around 2 hours travel from Medan, the largest city in Sumatra and third largest in Indonesia. Medan’s airport is well connected to other cities in Sumatra and Java, also Kuala Lumpur and Pinang in Malaysia.
The following airlines also have regional flights to Medan:
AirAsia Flights to Medan from KL, Penang and Jakarta
Garuda Flights to Medan from Kuala Lumpur and Jakarta
Lion Air Flights to Medan from Penang and Singapore
Malaysian Airlines Flights to Medan from KL, Penang
Silk Air Flights to Medan from Singapore
Sriwijaya Flights to Medan from Penang, Singapore and Jakarta
Note that schedules regularly change, airlines go out of business and new ones start up.
Buses depart for Berastagi from Medan’s Pinang Baris bus terminal which is 10km west of the city centre. Transport is frequent and finding the right bus or minibus is easy.
From Berastagi there are opelets (small minivans with two benches in the rear for passengers) to Lake Kawar that leave throughout the day. The yard that they depart from is on the Northern side of the bus station but just ask bus companies and you will be pointed in the right direction. The journey to the Lake is only 24km although how long this takes depends on how many deliveries the driver has to do and detours are not uncommon.