Chris Hemsworth is joined by model pal Cheyenne Tozzi at a wildlife retreat in Sydney

Chris Hemsworth enjoyed a day out at Zambi Wildlife Retreat in Sydney’s Wallacia with model Cheyenne Tozzi on Friday.

The unlikely friends were spotted arriving separately at the wildlife sanctuary, with Chris, 37, accompanied by his children.

The Thor actor cut a casual figure during a day off from filming the next installment in the hit franchise, stepping out in black shorts and a white T-shirt.

He also wore charcoal grey sneakers, and kept a low profile in a camel-coloured baseball cap and black sunglasses.

Meanwhile, Cheyenne was spotted puffing on a cigarette as she stood outside in the carpark.

The 32-year-old model showed off her long, lean legs in a pair of micro shorts, which she teamed with an oversize white button-up shirt.

Her long blonde hair was worn loose in beach waves, and she appeared to have been wearing minimal makeup.

Chris has been married to actress Elsa Pataky for 11 years, and they share three children together – daughter India Rose, eight, and twin sons Tristan and Sasha, seven.

In an interview with New! magazine in October, as re-reported by 9Honey, Chris said Elsa isn’t the jealous type.

‘Not at all – she knows I only have eyes for her,’ he told the publication of his 44-year-old wife. 

Meanwhile, Cheyenne is mum to a two-year-old daughter, Dahlia de la Lune, who she shares with her ex, Brazilian model Marlon Teixeira.

Daily Mail Australia has reached out to both Chris and Cheyenne’s representatives for comment.