Momoa was spotted with a loincloth that looked like a thong and exposed his butt. The actor shared a number of photos with his followers on Instagram after documenting the outing.
A rainbow over the ocean was depicted in one picture, while a big fish that Momoa caught was shown in another.
Momoa can be seen flashing his behind as he reels in a catch in a video from the fishing expedition.
Recently, the 43-year-old actor also made news for other reasons. Momoa was recently seen boarding a flight for New Zealand, where he is supposedly getting ready to start filming his upcoming Apple TV+ series, Chief of War.
The program is anticipated to follow an epic account from the perspective of the native Hawaiian people of the unification and colonization of Hawaii.
Most recently, he drastically altered his look to draw attention to the damaging effects of single-use plastics on the environment.
Momoa unveiled a tribal tattoo on the side of his head and shaved the sides of his trademark long hair.
Momoa also stated in his Instagram post following the fishing excursion that he would be eating "dry aku all week." Though its exact nature is unknown, aku looks to be a species of fish.