I had been wanting to see The Bermuda Depths (1978) and finally bought the DVD. The made for TV movie stars Leigh McCloskey, Carl Weathers, Burl Ives and Connie Sellecca. The producers are Rankin and Bass the same that brought all the stop motion animated holiday shows such as Rudolf. This movie is live action and takes place in Bermuda.
Magnus returns to the island he grew up on trying to find out more about the mysterious death of his father many years ago. While on the beach he meets Jennie who he soon remembers is the same girl he was friends with as a child and who used to play with him on the beach with a turtle they found since it hatched from its egg. Jennie mysteriously always shows up swimming from the sea and there is an entire island lore about her having drowned decades ago in a sinking boat after she made a deal with the devil to save her and keep her alive. No one else except Magnus ever sees her except those doomed to drown in the sea.
The special effects are clearly done with models and the giant turtle looks like something out of the Land of the Lost. This is a very quirky movie - a mystery, a romance, an action adventure and a creature feature. The underwater scenes are beautifully shot and the music adds to the mysterious atmosphere of this movie. While not a masterpiece of the telefilm genre, it is a movie to enjoy on a weekend afternoon.