Your tour page title is auto-generated, however, if you want to override this with your own title for SEO purposes, that is possible.
Your tour page meta description is the tour summary, however, if you want to override this with your own description for SEO purposes, that is possible.
Login to TourCMS > Tours > Description & Images > Custom Fields
In the field Custom Page Title, enter your new title and save.
In the field Custom Meta Description, enter your new description and save.
When the cache for that tour is regenerated, the new custom meta data will go live.