not enough harvest every year), charcoal burning and cattle breeding (mainly goats, last exported in 1970) were carried out. In the early 20th century, Bonaire's middle class was also able to buy plantation land. On Curaçao, the land house served as the main house of a plantation, where the owner lived. In the immediate vicinity were outbuildings, barns, stables and corrals. Surrounding it were the slave dwellings. On Bonaire, the plantation houses became the owners' cottages, where they stayed during the weekends. Often during the week there was an overseer (vito) who supervised the work on the plantation. Transportation Bonaire's first airport was located near Tra'i Montaña Subi Blanku and crossed the current path of Kralendijk to Rincon and was built in 1936. The airport proved to be too small when American soldiers arrived on Bonaire in the second half of 1943. The commander stated that a new airport had to be built. Construction began in December 1943, with the new "Flamingo Airport" opening in 1945. A small terminal was built that was suitable for the number of passengers at the time. This building was used until mid-1976. The airport had received many extensions of both the runway and the terminal itself. Today the airport is known as Flamingo International Airport and is served by a variety of both domestic and international airlines. Services from the US include Delta Air Lines, American Airlines and United Airlines. Airlines providing European service include TUI Netherlands and KLM. Consistent air service from Curaçao is available through Divi Divi Air and EZ Air. The airport is equipped with a fire station, control tower and hangar. Plans are underway for modifications to the current airport facilities, runway and the fire station. Settlements The two towns on the island are Kralendijk (the capital) and Rincon. Kralendijk has many suburbs/neighbourhoods, although on an island with such a small population, the distinction is not always clearcut. The town of Kralendijk is a result of a merger of five villages: Antriol (Entrejol), Nikiboko, Noord Saliña, Playa, and Tera Kora. The town of Rincon is the only other town. Labra, Ishiri, Kokorobi, Jan Doran, Vlijt, Rigot, Porto Spano and Kunchi were several smaller towns that had existed in the national park but were later abandoned. Demography The population is estimated to be 20,104 in 2019. Most of its inhabitants are of African descent, or mixed race, the product of European