But starting on Thursday, he will attempt to do exactly that in three-and-a-half days, aiming to finish in Cottesloe at about 3pm on Sunday.
The journey will challenge the ultra-marathon runner to cover 442km, or the equivalent of more than 10 marathons.
‘I have been doing marathons and ultra-marathons for the past four years,’ Mr Simpkins said.
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READ NOW‘I dreamt of running to Albany, but dismissed it. About 18 months ago, I came to the conclusion that the dream was possible, so started running marathons day after day.
‘The biggest test is to be able to wake up the day after a marathon and do it again.’
Mr Simpkins is not just using the run as a personal challenge, he is also raising money for The Centre for Cerebral Palsy in Coolbinia.
‘For people with cerebral palsy, mobility is a really big factor,’ he said.
‘I want to use my mobility to help people who face more obstacles to becoming mobile. I think it is a good pairing.’
He aims to raise $86,000.