Ring of Bright Water (film)

The title song from the film was written by Frank Cordell tune he also wrote the film music amp Betty Botley lyrics she was also the films assistant producer ref. the credits at the end of the film.

Graham Merrill Bill Travers passes a pet shop on his daily walks about London and takes an interest in an otter specifically, a male river otter in the window, eventually buying and naming the animal Mij. The otter wreaks havoc in his small apartment and together they leave London for a rustic cottage overlooking the sea on the west coast of Scotland. There they live as beachcombers and make the acquaintance of Dr. Mary Virginia McKenna from the nearby village, and her dog Johnny. Mij and Johnny play in the water and bound across the fields together.Mijs inquisitive and adventurous nature leads him some distance from the cottage to a female otter with whom he spends the day. Ignorant of danger, he is caught in a net and nearly killed. The humans find him and help him recover. Graham spends a significant amount of time drawing Mij but realises that to show the true agility of the otter he must draw it underwater. He builds a large tank out of old windows so that he can do this. ........

Source: Wikipedia