Hey Dust, without links to your designer project and published site, the question lacks specificity, so the answer must be similarly vague.
The Webflow CMS is not a relational DB, so try to minimize the number of records and relationships you’re trying to create. If you’re just displaying days & activities, I’d probably store the entire itinerary in a Rich Text field, and then parse it with javascript to create the tabs+list presentation I want. But that’s a programming route.
If you want the days to be their own records, e.g. because you want to be able to link directly to event X day Y, you can;
Create two tables;
Event -contains all details about the event
EventDay - contains details about the day (incl time+activity list as a rich text). Has the day # in a numeric field. Has a single-ref to the Event.
On your Event collection page, you’d add a collection list bound to EventDay, and filtered to those which are part of the current event. Order it by day # asc. Present the individual tab content how you want.
Use Finsweet’s CMS tabs to organize that data in a tab element;
