Zac Efron takes a swig from his water bottle as he takes a run along a trail on Tuesday afternoon (February 10) in Hollywood Hills, Calif.
The 21-year-old actor recently returned from Rio de Janeiro with girlfriend Vanessa Hudgens. The duo were guests of Caras magazine.
Zac is rumored to host Saturday Night Live on April 11th — just in time for 17 Again promotion.
15+ pics inside of Zac Efron working out…