Zac Efron post semi-regularly on Instagram and he's often sharing photos of his adventures.
Occasionally his adventures involve him taking off his shirt.
Now I did say occasionally, because is in the 7 years that he has been on Instagram, he has only shared 30 fully shirtless posts.
And we can thank Baywatch for 6 of those posts.
Lucky for you, we've rounded them all up here. Enjoy!