I’m trying to edit the “media attachment” template.

I have four image galleries, each one with a different URI.

I want the media template to reflect the gallery in a link in the page.

The media attachment page URI is /galleries/file-name-here.
I’m trying to make this URI reflect which gallery it is under.

For example, in the “Landscapes” gallery, the URI is /gallery/landscape/.
I want to make the images in that gallery have URIs that reflect that hierarchy. So, in the case of a landscape image, I want it to be /gallery/landscape/the-landscape-image.

How would I go about doing this?

And on the media attachment page that displays the image I want there to be a link that users can click to go back to the Landscape Gallery (link to /gallery/landscape/).

How would I do this to ensure it works correctly across all four galleries?

Thanks.