Vanessa Hudgens flaunted her new short 'do, and a sassy attitude to match, at Hurley's Walk the Walk National Championship at the US Open of Surfing in Huntington Beach.

The actress, who chopped off her long locks for her role in the upcoming Gimme Shelter, served as host and judge for the competition ... which featured supermodel Marisa Miller strutting her sexy stuff.

We're lovin' Vanessa's pink summer dress. Life's a beach when you're young and sexy!