IT WAS a good day on the water for Australia at the Paralympics, as they picked up three medals, including a gold in the men's KL2.

Curtis McGrath won his event and said it had been a long journey to get here.

"Three years ago I would never thought that I was going to make it here," he said.

"I want to thank a lot of people who helped me to be here: surgeons, physiotherapists, family and friends."

McGrath was serving as a soldier in Afganhistan in 2012, when he trod on an IED, an improvised explosive device, or landmine.

He lost both his legs in the accident and thought he was going to lose his life.

"Twenty minutes after the accident, when I was lying on the stretcher, I told my mates, 'I will be a Paralympic athlete'," he said.

"I thought that my legs were gone, my injuries were severe but I was thinking about Paralympics. Today I couldn't be happier."

McGrath said there were a lot of contrasts between what he had before and what he had now.

"I wouldn't have a chance to be in the Paralympics before the accident and I am so happy now," he said.

"We can say that I am blessed, it is a great moment."

Amanda Reynolds won silver in the KL3 final and Susan Seipel won bronze in the KL2 women's event.