Hello @laurenc,
The Breadcrumb is displayed dynamically on each trip page so the link” trip” redirects to the archive page.
Also as much as we would love to help you on this, we are unable to do so as it requires higher code customization so our suggestion to you is hire a professional developer so that your code won’t be affected in any way.
To hire a developer please follow below given link:
http://wensolutions.com/hire-wordpress-customizer/
As for the banner image, currently, in the theme, there is no such feature to add the separate image for each trip page.
However, we will provide the custom code which will help you set the banner image whatever image that you upload in the featured image section of that page and for that paste below given code in your child theme functions.php file.
https://gist.github.com/anonymous/dc2e73619fcd3be245aeeea78d3a387d
This code will make the featured image display in the banner section i.e. whatever the featured image that you upload in that page, that image will be displayed in the header section.
Hope this helps.
Best regards!!
Have a good day 🙂