Aquaman and Mera Brave the Waves in Australia

Jason Momoa and Amber Heard got decked out in full "Aquaman" gear while shooting scenes for the big superhero movie.

The two have been down under shooting for quite a while, and hung out in the surf Friday at Currumbin Beach, while taking direction from producers via walkie-talkie.

Kinda funny, there's other beachgoers running around some of the shots ... which may end up looking weird when some dude in board shorts boogie boards through Atlantis.