Feature: Powerboat race in Indonesia's volcanic lake spurs enthusiasm

By Dames Alexander Sinaga

JAKARTA, Feb. 26 (Xinhua) -- As Tongam Siahaan and his family strolled along Lake Toba in Indonesia's province of North Sumatra on Sunday, he took a pride in the crater lake that has become one of the venues for the Formula 1 World Powerboat Championship, also known as F1H2O.

The 46-year-old bank clerk from Jakarta took leave to witness the world's highest class of inshore powerb