All naturally formed landforms (e.g. reefs, cays, banks) in those areas is already the territory of a country, with no terra nullius remaining, although there are a couple disputed claims. You want to search for the phrase "buy [country name] islands".
All naturally formed landforms (e.g. reefs, cays, banks) in those areas is already the territory of a country, with no terra nullius remaining, although there are a couple disputed claims. You want to search for the phrase "buy [country name] islands".