Hello, all. I have been searching for a particular book for a long time. I figure if anyone can tell me the name of it, or if it rings a bell, this is probably the place.
I'm looking for a children's / young adult's novel from probably the late 50's to early 70's. I read it as a kid in the late 80's, so I suppose it could be later, but it had that canvas hardback that you don't find on more contemporary books. I remember elements of the story, but I do not remember the title or the author.
The plot was the sort of kids-stranded-on-a-strange-planet adventure story that's typical of young adult stuff. It was about these teenagers who crash land on an ocean planet. Their ship is submerged. The key point that's memorable about this story is that the water on the planet is milky. The planet's water is white, translucent, but not transparent. I also seem to remember that the planet had a light side and a shadowed side, like the moon.
I'll see if I can remember any more details, and I know it's not much to go on, but the need to know is tearing up my brain. Thanks!