Shallows, The (2016, U.S.A.)

The Shallows is a cross between Jaws and 127 Hours.  It follows a young 20-something woman who, dealing with the recent death of her mother, is surfing on an isolated beach.  But soon she becomes stranded 20 yards offshore on a buoy. What lies between her and the shore is a huge great white shark.  She must find a way back to shore before succumbing to her injuries.