Zac Efron is Water Taxi Tough

Zac Efron flexes his leading man muscles on Sunday as he enjoys a water taxi harbor cruise ride with girlfriend Vanessa Hudgens, pal Ashley Tisdale and HSM3 director Kenny Ortega at Circular Quay Wharf in Sydney, Australia.

Earlier in the day, Zac and Vanessa were seen in their CBD hotel room in Sydney. Later, the young stars dined at the Catalina restaurant on the harbor and then indulged in some retail therapy at Ksubi.

High School Musical 3: Senior Year opens Down Under on December 4 but a press call is scheduled for later this morning, then the George St Greater Union premiere tonight.

40+ pictures inside of Zac, Vanessa and Ashley soaking in Sydney…