By Ali Daher For Daily Mail Australia
Published: 04:26 BST, 16 October 2020 | Updated: 04:26 BST, 16 October 2020
Jono Castano is the man celebrities go to when they want to achieve their ambitious weight loss goals.
And on Thursday, the Sydney-based personal trainer proved to be his own best advertisement as he went shirtless at Sydney's Clovelly Beach.
The 29-year-old hunk showed off his impressively gym-honed body and six-pack abs as he cooled down in the surf.
Celebrity personal trainer Jono Castano, 29, (pictured) - the man behind Rebel Wilson's incredible weight loss shows off his six-pack abs as he parades his buff body on Thursday
He showcased his Adonis-like physique in a pair of black boardshorts.
The went solo for the swimming, with his model wife Amy Castano nowhere in sight.
Jono has a host of A-list clients, including Home and Away star Pia Miller, ex-Bachelor Matty Johnson, PR queen Roxy Jacenko, and actors Lincoln Lewis and Jodi Gordon.
Famous face: Jono was recently catapulted into the spotlight after working with Rebel Wilson (right) on her 'year of fitness' and incredible weight loss
But he is perhaps most famous for being the man behind Rebel Wilson's amazing weight loss, rumoured to be in excess of 20kg (44lbs or 3.1st).
As well as offering a one-on-one training, the Colombian-born fitness expert owns Acero Gym in Kensington, in Sydney's east.
The former soccer player was recruited by Bogotá's Academia F.C. at the age of 17.
Fit: The Sydney based celebrity personal trainer proved to be his own best advertisement as he went shirtless at Sydney's Clovelly Beach
Fresh: The hunky 29-year-old