If you're visiting Croatia then heading north to Slovenia / Italy be sure to visit the wonderful Motovun motorhome site
which is half way up a small mountain and right under a medieval village on the top. The village has a hotel where the castle was (with a nice walled perimeter) but a very friendly one that lets you use the swimming pool for free if you stay in the Motovun motorhome site (Kastel) which also has a lovely small free pool. There are art galleries and shops on the narrow single cobbled street winding up steeply.
You can buy truffle goods, oils, jewellery, wines and artefacts from the region. The site itself is small but lovely with a fab view over the valley and quite cheap. It's on the campercontact app (no:18597) and website. We plan to come back in warmer weather but we enjoyed being the only ones last night