Hi @ciccioesse,
Loco Translate plugin is only used to translate the static string on the site.
The Home text being displayed on the Breadcrumb can be changed via Dashboard > Appearance > Customize > General Settings > SEO Settings.
Check the screenshot – https://prntscr.com/ojspo1
And the other texts like Destination, Activities and so on are being displayed via the respective page titles. Destination is displayed from the Destination page’s title.
And regarding the slug translation, it might be possible through the Polylang plugin. We would like you to contact Polylang support forum for slug translation help.
Thank you.