Zac Efron goes shirtless in Hawaii

Zac EFron body looks better than ever while going shirtless for a day at the lake in Oahu, Hawaii.

The 27-year-old actor was seen using a rope swing while having fun with his "Mike and Dave Need Wedding Dates" co-stars  Audrey Plaza and  Adam Devine for their upcoming movie.

Devine, 31, said, "Here's to me being way more muscular and generally more shredded than my lil bro @ZacEfron. "In our off time, we jump off waterfalls and nearly escape death. Nbd. Having so much fun shooting #mikeanddaveneedweddingdates this summer in Hawaii".