The 'Alcatraz of Indonesia'
5 March 2015 Last updated at 00:03 GMT
Two Australians are among a group of foreigners expected to face execution in Bali within the next few days, despite repeated appeals from the Australian government for clemency.
They have all been transferred to the high-security island prison of Nusakambangan.
The BBC looks at the prison which has been called '"the Alcatraz of Indonesia".