It's a family affair!

On Saturday, Naomi Watts rounded up all her boys as they embarked on an errand trip that included a stop at Home Depot and lunch at Swingers Diner.

The peaceful outing comes just a day after Liev helped break up a fight between a photographer and a waiter while at dinner with Naomi and Simon Baker at Giorgio Baldi in Santa Monica.

He's quite the peacemaker!

Now this is a hands-on celebrity dad!

Liev Schreiber hit the streets of Brentwood to teach 5-year-old son Sasha how to ride a bike, but the actor had his elbow bandaged up. Let's hope he didn't take a spill.

Looks like mom Naomi Watts was spending quality time with the couple's 4-year-old son Kai. Lucky boy ... he got mom all to himself.

Love this happy family!

There must be something in the water in Australia because the natives are gorgeous people!

Hugh Jackson, wife Deborra Lee Furness joked around with pals Nicole Kidman and Keith Urban at the 2013 G'Day USA Black Tie Gala in L.A.

Also hitting the red carpet ... Naomi Watts and Liev Schreiber as well as cute couple John Travolta and wife Kelly Preston. Nice hand on the hip pose. Work it!

See more of the celebrities at the event in our gallery below.

Naomi Watts and Liev Schreiber hit the beautiful blue waters of St. Barth with their sons Sasha and Kai.

Liev and Sasha went for a solo ride on a tube while mom Naomi cheered them on. Looks like they're having a blast!

The family of four has been enjoying their luxury vacation aboard the huge sailing boat Athena. Now THIS is what we call R&R.

Spread Pictures

Looks like they made it a beach day!

Naomi Watts and Liev Schreiber brought the family to ditch the cold and ring in the new year with some warmth as they played in the sand in St. Barth on Monday. Good choice!

The 44-year-old The Imposible actress and the 45-year-old Ray Donovan star showed off their fit bodies as they spent the afternoon with their adorable sons Sasha and Samuel. What a great way to bring in 2013!

It was a family outing for Naomi Watts and company as her and hubby Liev Schreiber hit the streets of NYC to help celebrate their son Sam's fourth birthday on Thursday. Who likes cake?

The 43-year-old actress had other reasons to celebrate as she received her first Golden Globe Awards nomination for her role in the film The Impossible on the same day, letting out a little yelp as she got the good news from her agent.

While Naomi could have let her news overshadow her son's big day, it seems as if she opted for a later date to enjoy her accomplishment. What a great mom!

Naomi Watts doesn't stick her boys on a school bus in the morning, she straps them into their bike seats and she and Liev Schreiber bike the boys to school!

Naomi's toted son Samuel Kai, 3, while Liev carried Alexander "Sasha" Pete, 4 through the streets of New York Friday. Adorable AND environmentally-friendly!

MLS

Happily unmarried couple Naomi Watts and Liev Schrieber have just plunked down $3.9 million on a 3 bed/2 bath co-op in NYC's trendy TriBeCa neighborhood, which sprawls across the entire 8th floor of the chic 1920's building.

The 4,315 square foot space includes key-lock elevator access, 14 foot ceilings, painted linoleum tile floors, two kitchens, and Hudson River views from the southwestern corner or the building.

The A-list couple also own a $4.3 million estate in the Hamptons on nearly three-quarters of an acre, with a swimming pool and separate guest cottage/pool house.