Cinnamon Islet is situated on the Madhu Ganga is located towards the south of Sri Lanka. The islet is inhabited by the family of the cinnamon grower G. H. Premadasa, who is kind enough to explain to visitors how to peel cinnamon for the production of cinnamon oil. People can have a cinnamon mixed tea and purchase Cinnamon of the highest quality here. Cinnamon is a spice that comes from the inner bark of the tropical Cinnamomum tree, is sold as rolled quills (cinnamon sticks) or ground into a fine powder. Sri Lanka.