Jason Momoa got the best surprise ever while he was filming scenes for "Aquaman" in Queensland.
The surprise: his family.
The insanely-fit actor took to Instagram to share a photo of the surprise.
"I have never been so surprised in my life. 38 is the greatest to date," he wrote. "I love u my loveee my babies my friends and OHANA to my cast and crew. Mahalo for caring. It was so beautiful. Mahalos to all the warriors It was an honor. #mindblown. #roots #connected #mytribe aloha j."
In the image, Jason looks lovingly at his wife while their children, Lola Iolani Momoa, 10, and Nakoa-Wolf Manakauapo Namakaeha Momoa, 8, look on. The cast and crew of "Aquaman" surround the family, and an elaborate birthday cake featuring Jason as "Aquaman" can be seen in front of the group.

Last month, Jason revealed the first footage from "Aquaman" at Comic-Con. Fans will get to see him as the underwater character later this year in "Justice League" — although we did get a glimpse of him in "Batman v Superman."

"Aquaman" has been relatively shrouded in secrecy. However, during a "Justice League" panel at Comic-Con, Jason dished a small detail about his film.
"I'm used to getting in trouble, so you know what? I'm going to tell you," he said. "That's Ocean Master's army. I'm going to be fighting my brother."