Kviabryggja penitentiary at Snaefellsnes peninsula. Vísir/Pjetur

is situated on Snaefellsnes peninsula, about a three hour drive north of the Icelandic capital Reykjavik. Loftmyndir.is

From inside Kviabryggja penitentiary. Vísir/Pjetur

A prison cell at Kviabryggja penitentiary. Vísir/Pjetur

The gym at Kviabryggja. Vísir/Pjetur

The cell block at Kviabryggja. V'isir/Pjetur

From Kviabryggja you can see one of Iceland's most beautiful mountains, Kirkjufell. Vísir/GVA

Olafur Olafsson, one of the majority owners of bankrupt Icelandic bank Kaupthing, has begun serving his prison sentence. Olafsson was among four of the former bosses of the bank who were sentenced to prison earlier this month. Olafsson was sentenced to four and a half years in prison, while the other three were sentenced to between four and five and a half years in prison by the Supreme Court of Iceland.Olafsson will serve his sentence at Kviabryggja penitentiary, an open prison, used to house prisoners who have no previous convictions or are not considered likely to misuse the proportionate freedom at Kviabryggja. No fence or bars are used at Kviabryggja.Kviabryggja was once a farm but was turned into a prison in 1954. It is situated on Snaefellsnes peninsula, about a three hour drive north of the Icelandic capital Reykjavik.There are currently 23 prisoners serving time at Kviabryggja which has a staff of six prison guards, a warden and one accountant. Below are pictures, taken by Pjetur Sigurdsson of Frettabladid, inside the prison.The Kaupthing foursome was accused of hiding the fact that a Qatari investor, Sheikh Mohammed Bin Khalifa Bin Hamad al-Thani, bought a stake in the firm. Al-Thani had bought the stakes with money illegally loaned by Kaupthing.Al-Thani's purchase, a 5,1% share in the bank, was announced only a few weeks before the collapse of Kaupþing in October 2008. The investor's purchase was seen as a confidence boost for the bank while rumors circulated about the bank having troubles.The Supreme Court confirmed the five and a half year verdict Hreidar Mar Sigurdsson, the former chief executive, received in the district court. Sigurdur Einarsson, former chairman of the board, was sentenced to four years in prison, while Magnus Gudmundsson, the former chief executive of the Luxembourg branch, was sentenced to four and a half years in prison.These are the heaviest sentences for financial fraud in Iceland's history. The four will have to pay their own legal costs for the case which amount to 82 million kronur or approximately 670 thousand