storage - Termux - How do I create a directory of files accessible outside of Termux?

I discovered that the files and directory that are created in (default) Termux, are not accessible to other apps on non-rooted phones.

Where is the folder that Termux defaults to?

How do I set it to use a folder / filespace that I can access through an app like ES File Explorer?

Or perhaps slightly differently, how in Termus would I change to, let's say, the default "Download" folder?

Cheers.