Taylor, aged 20, who swims fulltime at Tomaree Aquatic Centre, left Australia on Tuesday bound for Glasgow in Scotland for the International Paralympic Committee world titles from July 13-19.

Three weeks later older brother Keiran, 23, heads to Los Angeles for the Special Olympics world games starting on July 25.

Four years ago at the Athens Paralympics Keiran brought home three silver medals and a bronze - this time he is eyeing off gold.

"Hopefully I can do a little better at these games and bring home a gold medal. I have been training five days a week in the pool plus a couple of gym sessions a week," he said.

"I will be competing in the 1500 open water, the 800m freestyle and 4x100m relay events and I feel that I am in great shape."

Taylor, who won silver at the 2012 Paralympic Games in the 100m backstroke and 200m freestyle, also has a busy schedule competing in the 200m free, 100m backstroke and 200m individual medley.

"My training has ramped up to 10 swim sessions a week plus two gym sessions and pilates. I am hoping for one or two gold medals but I just want to do my best."

Competing in the S14 classification (intellectual impairment), the Salamander Bay siblings began swimming at around age nine and have achieved some remarkable success training at Tomaree.