Has anyone ever seen something that looks like a large swimming float or a small surfboard that you can lie on and look through a window into the ocean, like snorkelling but without having to put a mask and snorkel on?

We used these in Eleuthera and while I've done a search for "aqua eyes" (the name they gave them!) all I'm coming up with are links to contact lenses!!

I'd love to get one of these boards to use in AC if anyone could give me any info about where and what they might otherwise be called.