Good mid-60's family fare w/ pro-ecology message. Something just becoming popular at the time. An Ivan Tors production. Same folks who gave us Flipper, Voyage to the Bottom of the Sea, & other 1960's sea-faring stuff.
Robert Lansing, Lee Meriwether, and a nine year old Robin Mattson,(later a Soap Star) - do their best w/ the B movie dialog and a simple story. Again, kids may like this better- a little thin for many adults. Basically, a story about a boy & his dog - or a girl and her fish. You get the idea.