Eva Mendes: New Year's Eve Hike!

Eva Mendes keeps it casual while dropping by for a check up with a friend at California Health & Longevity Institute on Monday (December 31) in Calabasas, Calif.

Later in the day, the 38-year-old actress was seen hiking with some gal pals and her dog Hugo and her boyfriend Ryan Gosling‘s dog George.

PHOTOS: Check out the latest pics of Eva Mendes

The day before, Eva was seen doing some grocery shopping with a gal pal in Los Feliz.

35+ pictures inside of Eva Mendes hiking with friends…