Private island
Southeast Asia has numerous islands, with Indonesia being an archipelago of 17,000 islands and the Philippines having around 7,100. Real estate laws restrict foreigners' ability to buy property in the geographical area, and many islands either have unclear ownership rights or are already settled. Private islands that are available in Southeast Asia's real estate market are also prohibitively costly due to being in high demand by hotel developers. Developments address these difficulties by selling private islands that have villas and neighbor islands that have high-end hotels; the proximity keeps costs of habitation down.
Aviation in Indonesia
As of 2013, there are 673 airports in Indonesia, ranging from grand international airports to modest unpaved airstrips on remote islands or inland interior areas located throughout the archipelago. In November 2011, Indonesia had more than 230 conventional airports, most of them operated by Transportation Ministry technical operation units and state-owned PT Angkasa Pura I & II. Major airports are managed by Angkasa Pura; Angkasa Pura I operates 13 airports in Eastern Indonesia, while Angkasa Pura II operates 13 airports in Western Indonesia. After the 2000 aviation deregulation, Indonesian airports endured a surge of passengers, especially catalyzed by the advent of low-cost carriers. According to the Indonesian Transportation Ministry, 9 of the 13 airports managed by PT Angkasa Pura I have exceeded their passenger capacity.