Humongous-80`s torrent

Movie Description
A cabin cruiser carrying four teenagers on a party runs aground in a heavy fog. When the four friends disembark they find themselves on an island of terror and death.

Credits
Cast: Janet Julian
Director: Paul Lynch

Synopsis
On a remote island, there resides a lonely creature who\'s half-man, half-beast. When a group of horny teens land on the isle after being shipwrecked, suddenly the monster has something interesting and exciting to do -- killing the kids off in numerous gruesome ways.