The Danish model wears a blue and white bikini as she runs along the beach.
Nina has strutted some of the biggest catwalks in the world including for lingerie giant Victoria’s Secret.
Nina, 30, jetted into Sydney, Australia this week to support her YouTuber/ boxing boyfriend Logan Paul.
The outspoken influencer was Down Under to promote his Prime energy drink which he created with fellow YouTuber KSI.
But some of Paul‘s fans were left disappointed as they won’t be meeting him after a meet-and-greet in Perth got cancelled.
Prime was originally sold exclusively in Asda in the UK, but can now be found in Aldi supermarkets.
There has been controversy around the resale of Prime products, with Wakey Wines in Wakefield selling items for up to £100.
Paul has also been busy with WWE after his surprise return at the Royal Rumble last month.
The American competed in the 30-men over-the-top-rope battle royal.
The 27-year-old also appeared to have set up a WrestleMania 39 showdown against Seth Rollins.