Some people turn 21 by going to a bar with friends to buy their first legal drink, but Gigi Hadid celebrated the milestone occasion in a completely different way. She gathered up her family and some of her closest pals and headed to the beach. And the Hadid siblings even made sure to pose for a few adorable family photos.

She chilled with her dad Mohamed, brother Anwar, as well as sisters Bella, Alana and Marielle. Oh, and The Weeknd also made an appearance.

In addition to cake, it looks like the Hadids also spent some time by the ocean, which The Real Housewives of Beverly Hills mom Yolanda Hadid also making a cameo.

And little sister Bella gets extra celebration points for rocking that ultra-special one-piece.

Boyfriend Zayn Malik was absent from any of the official Hadid shots, but he did post a photo or two from the weekend to his IG, one of which included his equally-good looking family.

She also made some time for her BFF, Taylor Swift. The twosome flew (we assume) private class to Coachella. "Birthday Weekend Goals-met vibes. One night at Coachella, thank you T," she wrote." Indeed.

Now that she's officially 21, check out some of Gigi's most memorable runway moments.