Packing on the PDA! Mel Gibson puts on an amorous display as he locks lips with 24-year-old girlfriend Rosalind Ross in Sydney

He's in Australia filming his latest blockbuster Hacksaw Ridge, but it isn't all work and no play for Mel Gibson.

The 60-year-old actor-turned-director was seen packing on the PDA while enjoying a romantic waterside stroll with his much younger girlfriend Rosalind Ross, at the weekend.

The pair were admiring the view from Double Bay in Sydney's exclusive inner east, and were spotted cuddling up for a kiss.

Looking completely loved up, Mel and Rosalind could easily have been mistaken for any average couple enjoying the temperate summer weather.
They are seen walking arm-in-arm down a pier before stopping to lock lips by the water's edge

Rosalind was dressed casually in an oversized tan coloured shirt and skinny leg jeans.

She added height to her frame with a pair of heeled boots and wore her long raven hair loose in a sleek and straight style.

Mel meanwhile, was in flip-flops and a white shirt unbuttoned at the collar. A pair of dark shades covered his eyes.

The couple's amorous display comes after Rosalind's close friend Devon Maitozo, told the Daily Mail Online that the brunette has grown sick of the 'negative attention' surrounding her relationship with the Academy Award winner and just wants to 'get on with her life without all the attention'.

'There's been a lot of very not very nice media that's been written about her. Sifting through it has not been very pleasant at all,' said Devon.

'Sensationalising her because of her relationships is not what she's looking for. She would probably enjoy it if it was about her and her career instead of her being the girlfriend of a celebrity but it's not and so she'd like to keep her life private.' 

Mel and champion equestrian vaulter Rosalind, are believed to have met last year when she applied for a job at his production company Icon.

According to Radar Online, love blossomed during a visit to the father-of-eight's 500-acre Costa Rica ranch.

'They started their romantic getaway in Costa Rica, hiding out in Playa Barrigona, where he owns a tropical sanctuary in the middle of the jungle, before heading to Panama. It's clear the two of them are really happy together'.

Since then, the pair have been virtually inseparable, with Rosalind also joining the actor in Sydney last August and visiting him on the set of World War II drama Hacksaw Ridge, in November.