Singaporean Ahmad Nasir is at Lake Toba in North Sumatra province on a family vacation to see the world's largest volcanic lake, which is 11/2 times Singapore's size.

To get there, the owner of a logistic company and his mother, aunt and sister had to fly to Medan, the provincial capital. There, they shopped for souvenirs and visited a palace before undertaking the four-hour drive to the lake.