Pekanbaru is the capital city of the Riau province of Sumatra. The economy was originally built on coffee and coal but now relies on oil. The Riau Province produces half of the crude oil for all of Indonesia, 650,000 barrels per year. Pekanbaru is a large, busy, modern city. The Siak river runs past Pekanbaru. About Shopping .There are lots of large, modern shopping centres throughout Pekanbaru including Citra Plaza on Jl. Tambusai, Ciputra Mall on Jl. Riau, Pekanbaru Mall on Jl. Sudirman and SKA Mall on Jl. Soekarno Hatta. Attractive Place .The Tesso Nilo National Park is not far from Pekanbaru with around 200 wild elephants and a small group of Sumatra Tigers. To prevent the wild elephants from leaving the National Park the Tesso Nilo Elephant Flying Squad has been formed which is comprised of 4 trained elephants and their trainers who patrol the border to force the wild elephants back into the park.