 Bengkalis Regency comprises the whole of Bengkalis Island and Rupat Island which are located in the Straits of Malacca, together with a wide swathe of the eastern coastal area of Sumatra Island as well as other islands within the archipelago to its north-east.The land area covers 7,773.93 Km2 and it borders on the Malacca Straits to the North, on Siak Regency to the south, on the Meranti Islands Regency to the Southeast, and on Dumai municipality, Rokan Hilir Regency and Rokan Hulu Regency to the West.The Bengkalis Strait separates Bengkalis Island from Sumatra as well as from Padang Island and Tebing Tinggi Island.