Mia Hewitt enjoys some fun in the sun with her new beau as the lovebirds enjoy a day out at Sydney’s iconic Bondi Beach

Mia Hewitt had a big smile on her face on Wednesday as she enjoyed some quality time at the beach with her rock ‘n’ roll boyfriend Vanda Erich.

The lovebirds were spotted enjoying a fun day together at Bondi Beach, after which they grabbed a bite to eat together at Rose Bay House.

With her brunette locks blowing in the wind, 18-year-old Mia, the daughter of tennis ‘It Couple’ Bec and Lleyton Hewitt, opted for a $238 bikini from Highrack Studios.

The retro two-piece suit featured a purple base with orange flowers, which was in keeping with Mia’s usual ’70s-inspired style.

Keeping with the old-school look, Mia paired her swimsuit with high-waisted jeans, a tan belt and red sunglasses.

She also wore a pair of comfortable black sandals and at one point covered herself up with a baggy white shirt.

Meanwhile, her musical partner came to the beach wearing jeans and a white T-shirt that read Attention Ladies I Listen To Liquid Zoo.

The rocker, who fronts his band Liquid Zoo, wore orange glasses and black Adidas sneakers.

When they arrived at their destination, Vanda and Mia put on only a pair of black swimming trunks and went in search of a nice patch of grass where they could stretch out.

This happened after Mia gave her first performance with her band Father’s Favourite, a ‘bohemian folk rock duo’, last weekend.

She looked incredibly stylish as she performed at a brewery in Sydney, wearing a mini skirt and a black top, wowing the crowd.

The lovebirds were spotted enjoying a fun day together at Bondi Beach before grabbing a bite to eat at Rose Bay House

With her brunette locks blowing in the wind, Mia, the daughter of tennis ‘It Couple’ Bec and Lleyton Hewitt, opted for a $238 bikini from Highrack Studios

The retro two-piece featured a purple base with orange flowers, which was in line with Mia’s usual ’70s-inspired style

In keeping with the old school look, Mia teamed her swimsuit with a pair of high waisted denim shorts, a tan belt and red sunglasses

She also wore a pair of comfortable black sandals and at one point covered herself with a billowing white shirt

Meanwhile, her musical partner came to the beach in jeans and a white cropped T-shirt that read Attention Ladies I Listen To Liquid Zoo

The rocker, who fronts his band Liquid Zoo, wore orange glasses and black Adidas sneakers

When they arrived at their destination, Vanda and Mia stripped down to black swim trunks and went in search of a comfortable patch of grass to stretch out on.

Mia enjoyed the sun while lying on her beach towel

Mia was spotted on stage enjoying a drink between songs, before performing her next hit.

After the successful performance, Mia was spotted outside the venue smoking a cigarette and having a drink.

She kept warm in a long brown coat as she smoked the darts, standing with her friends who had come to cheer her on.

Mia’s long brunette locks were not on display and after her performance she was seen hugging her friends.

She opted for her usual 70s-inspired look

Mia seemed to enjoy spending some quality time with her new boyfriend

The lovebirds brought several beach towels and canvas bags for their day out

Mia opted for a very retro and pricey bikini set from Highrack Studios