Covering a window located in shower/tub

use privacy film that you can cut to size,available in different patterns and Home Depot carries it

Obscure Contact sticky back .....

Contact paper that lets the sun in but eyes out.

Hello! There are a number of options to block the view into your shower. There is a frosted, self-adhesive window film, waterproof window blinds, shades, or window shutters, as well as a spray can that applies frost to your window. These items are available online and some, I know, can be found at Target.

I had one of those covered with a plastic lacy tablecloth. Initially it had Contact paper on it, but that was a bit ratty looking, so I put up a curtain rod and bought the plastic tablecloth and used it to protect my privacy.

You can also make window curtains out of an inexpensive shower curtain

Artscape cling film...gorgeous patterns... Light in...view out.