EU travel and privacy review for a campsite booking site

CampingBooker will sell camping stays online across several EU countries, and may later combine stays with vehicle rental or activities in one purchase. We need a lawyer to tell us where the lines are. You review our public terms and privacy pages and give an opinion on when combined purchases could fall under the EU Package Travel Directive, what follows from that, and what we need for cookies and consent on the site. Deliverable: a written opinion, marked-up terms and privacy pages, and a short list of decisions for the business. Done means: the texts are ready to publish, and the opinion says plainly what we can and cannot sell together. Must have: admitted attorney, EU Package Travel Directive, GDPR and ePrivacy cookie rules. Nice to have: tourism law in Croatia or Slovenia, marketplace terms.