Hugh Jackman has thanked lifeguards who helped rescue his children from a rip at Bondi Beach yesterday.

The actor launched into action himself at the Sydney beach yesterday, when his 10-year-old daughter Ava and 15-year-old son Oscar became caught in a rip.

Swimmer Peter Adam lent a hand, grabbing Ava and then linking hands with Jackman to pull her to safety.

"His daughter was struggling to get on to the sand bar so I reached down, grabbed her arm and put my arm up to Hugh to make a chain to pull us up on the sand bar," he said.

"That's what you do with any family out there."

Dan Conn said he helped drag the children to the sand bar, but Oscar was again carried out by the current.

"I think he was under a bit of pressure with the two kids at once but he was pretty cool, calm and collected, as Hugh always is I suppose," he said.

Mr Conn said Jackman was "definitely a bit of a superdad, superhero, and he's a super bloke too."

Lifeguards and lifesavers then assisted, bringing the teenager to safety.

Bondi lifeguard Trent Falson said Jackman thanked him multiple times.

"He said you guys did an amazing job, I think he thanked me about three times on the way up the sand," he said.

Bondi Beach was closed for the rest of the afternoon.