Actress cools off by a waterfall

Vanessa Hudgens headed outside to exercise yesterday.

The actress endured a long walk through the mountains in Hawaii with her sister Stella, 18, and a male friend.

Best 8 mile hike companions. We are the sugar loaf trifecta,’ she told Instagram fans.

You can’t mess with us @stellahudgens @alecholden trucking thru the Na Pali coast.’

Vanessa – who works hard to keep her body toned – later showed her admirers where the tough trek had taken the trio.

The 8 mile hike paid off ,’ she wrote.

The 25-year-old can be seen cooling off by a waterfall wearing a skimpy monochrome bikini in the snap. 

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Beth Shearing