Zac shared this Aug. 31, 2023 thirst trap on Instagram.
Zac appears with his brother Dylan Efron in this Aug. 31, 2023 pic.
The actor is seen filming Baywatch the movie.
...who do we appreciate? Zac and his eight pack...
The actor gears up for his role in the lifeguard flick by swimming some laps at the pool.
Zac gets a little handsy on the set of Neighbors 2 in a pair of bright orange short shorts.
The actor looks nothing short of perfect while on set in Hawaii for his new movie Mike and Dave Need Wedding Dates.
It's clear Efron never misses a work out, but it's not like we're complaining!
We can't even count how many muscles are bulging in this photo.
Shooting this Dirty Grandpa scene didn't require much by way of wardrobe!
Of course this is what he looks like on a horse in Italy.
Naturally, the hunky star took his shirt off (with a helping hand from Rita Ora) after winning the coveted MTV Movie Award for his impressive physique.
In That Awkward Moment, the sexy actor flaunts his muscles and goes completely naked in this comedic scene.
The hottie loves his amazing body almost as much as we do.
Shirtless Zac is heavenly all soaking wet.
The handsome star maintains his flawless muscles on set with a game of basketball.
It's almost impossible to look away from The Lucky One star's superb six-pack.
The heartthrob pumps his fist and displays his bulging biceps.
In The Neighbors, the hunk plays the leader of a rowdy frat, and more importantly, he does it with minimal clothing.
The actor flashes his pearly whites after a refreshing dip in the ocean.
The High School Musical hottie listens to music and unwinds sans shirt.
MORE PHOTOS: Surprisingly buff stars