Zac Efron‘s muscles bulge out of his shirt while making his way through LAX Airport to catch a flight out of town on Wednesday (July 30) in Los Angeles.

No word on where the 26-year-old actor is heading, but his new girlfriend Michelle Rodriguez was spotted back in Europe that same day, so perhaps he is going to see her!

PHOTOS: Check out the latest pics of Zac Efron

While live tweeting his episode of Running Wild with Bear Grylls earlier this week, Zac said what the weirdest part of the trip was for him.

“One of the weirdest things I’ve ever done- sleep that close to a man in a cave,” he wrote.

FYI: Zac is wearing Scotch & Soda jeans.

25+ pictures inside of Zac Efron muscling his way through the airport…