A Shirtless Zac Efron Does Some Tire Swinging in Hawaii

Zac Efron and Robert DeNiro
Lucky for us, there will be a ton of Zac Efron shirtlessness...

Zac Efron is looking very buff these days and is not afraid to show it off.

Efron and Adam DeVine made the most of their downtime, while away from filming Mike And Dave Need Wedding Dates with some tire swinging across a river.

Zac posted a photo and a video to Instagram from the outing:

http://instagram.com/p/35YyX2m8-W/

In the slow motion clip Efron posted, he is seen launching himself off the tire and striking a pose:

#COWABUNGA

A video posted by Zac Efron (@zacefron) on

It looks like Efron’s girlfriend Sami Miró is missing her man, judging from her tweet on Sunday:

http://twitter.com/SamiMiro/status/610177491479605249

I’m sure they will be reunited soon enough. In the meantime there is always Skype.