Santa Cruz del Islote: World's most densely packed island
Santa Cruz del Islote is a tiny island off the Caribbean coast of Colombia.
Some 500 people live on land the size of a football pitch. There are four main streets but no cars or motorcycles to ride along them.
BBC Travel visits the island to find out more.
The BBC Travel film featured in The Travel Show which can be seen on BBC World News and the BBC News Channel.