Great White: Shark movie before the summer

A blissful tourist trip quickly turns into a nightmare when five passengers on a seaplane become stranded miles from shore. In a desperate bid for survival the group try to make it to land before they either run out of supplies or are taken by a menacing terror lurking just beneath the surface.
Cast: Katrina Bowden, Aaron Jakubenko, Kimie Tsukakoshi, Tim Kano, Te Kohe Tuhaka
Directed by: Martin Wilson
Screenplay: Martin Boughen
Produced by: Neal Kingston, Michael Robertson, Pam Collis