Cowdrey has Paralympic record in sights

Matthew Cowdrey has a golden opportunity to become Australia's most decorated Paralympian in London even if he is trying not to think about it.

The eight-time Paralympic champion swimmer is set to contest up to eight events in his quest to leapfrog compatriot Tim Sullivan (10 gold medals) and nine-time winners Louise Sauvage, Priya Cooper and Libby Kosmala.

"To be able to say you are the best at anything is amazing but to be the most successful Paralympian we have ever had ... would be a huge honour," he told AAP.

"That is something I am trying not to contemplate at the moment."

Sprinter Sullivan and shooter Kosmala are also competing in London but their medal prospects are not considered as strong as Cowdrey's.

The swimming competition starts on August 30 in east London with Cowdrey attempting to pull off the rare feat of winning the same event at a third straight Games.

Cowdrey won both the 100m freestyle and 200m medley titles in Athens and Beijing.

Having watched superstar Michael Phelps defend two of his four individual Olympic titles in London only reinforced to Cowdrey the difficulty of staying on top in the pool.

"Watching (Michael) Phelpsy and (Olympic breaststroke champion Kosuke) Kitajima to win three in a row, it really illustrated how hard it is to win three in a row," he said.

"You have to be lucky to hit your peak on the first one and then still be on top of your game for your second one and then hold on for your third one."

It is a far cry from the stressed-out 15-year-old Cowdrey who lost his Paralympic accreditation on the eve of the Athens Games.

"No excuses for rookie mistake like that," he said.

Cowdrey and about three quarters of Australia's 161-strong team attended Tuesday's announcement at Cardiff Castle that wheelchair rugby player Greg Smith would carry the nation's flag at the Paralympic opening ceremony on August 29.

It is the nation's largest team for an overseas Paralympics with Tuesday's reception in Wales including performances from pop band Ice House.

The feel-good factor behind the Olympics and a strong British team has London set for the best supported Paralympics in history.

A record 2.2 million tickets have already been snapped up with organisers looking at potential sales of up to 2.5 million for the quadrennial event.