La Palma (Spanish pronunciation: [la ˈpalma]) is the most north-westerly of the Canary Islands. La Palma has an area of 706 km² making it the fifth largest of the seven main Canary Islands. The total population is about 86,000, of which 18,000 (2003 data) live in the capital, Santa Cruz de la Palma and about 20,000 (2004 data) in Los Llanos de Aridane. Santa Cruz de La Palma (the island's main port) retains many elegant 17th- and 18th-century houses, and produces high-quality handmade cigars made from locally grown tobacco. In 1815, the German geologist Leopold von Buch visited the Canary Islands. It was as a result of his visit to La Palma and Tenerife where he visited the Las Cañadas and Taburiente calderas, that the Spanish word for cauldron - "Caldera" - was introduced into the English language geological vocabulary. La Palma has "Sister City" status with El Dorado Hills, California, United States.