Australia’s worst serial killer has boasted about his life in Supermax, writing about his "apartment-like" prison cell and living conditions.

Backpacker killer Ivan Milat is currently serving seven life sentences, one for each victim.

Milat was convicted and sentenced in 1996 for the murders, the victims’ bodies were dumped in the Belanglo State Forest, south west of Sydney.

View photos Milat has written that Supermax was not as tough as it was made out to be. Photo: Supplied. More

To date, Milat remains one of the longest serving inmates in Supermax since it opened in 2001.

Writing to News Corp, Milat told of his day-to-day life in Goulburn’s Supermax, saying the food was "OK" and his cell was a bit like an apartment.

Milat, 71, wrote conditions were better than other prisons.

He told news.com.au that he wasn’t stuck in a cell "all day".

“During the day one can wander around the front or back yard,” he wrote in neat writing.

He also said he had access to the library, exercise yards, basketball court and running track.

Milat wrote he had use of hot water, power points and access to a phone if he wanted to.

News Corp writes Milat enjoyed his coffee black with sugar and special biscuits, which he ordered in “buy ups” into the prison.

He claimed Supermax inmates received privileges to “keep us calm”.

View photos Milat claimed prisoners demands were typically met so they remained calm. More

“HRM they supply all our gear, TV radio etc., out in main prison one has to purchase all of it,” he wrote.

“They supply it to keep us calm. If it breaks down, they replace it.

“The food is fairly good. In 2001 it came to us in sealed packs and that is how it is in all NSW prisons.

“Any special diets, Muslims etc. are catered for. No guess work on that, once a person declares himself a Muslim then he always issued the religious friendly meals.”

In 2006 he made headlines for his prison antics after a sandwich maker and television were confiscated and he went on a hunger strike.

In 2009 he used a plastic knife to cut off his little finger in protest of being denied inquiry into his conviction.

Milat also watered down assumptions that Supermax was a tough prison.

“I gather you think this place HRM/Supermax is something really special,” he wrote.

“I know that it is portrayed as the harshest place in the system.

“It certainly is high security, the number of keepers to care for us, five-six or more before they open up a cell even just to hand over the mail or our meals.

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