Day 1
Settle into Opatija
Choose a short Lungomare section and a relaxed dinner. Ask about gradients between your hotel and the shore.
Day 2
Lovran & its seasonal table
Explore Lovran and look for current chestnut-season offerings. Check the tourist board’s event programme; do not assume a festival occurs on your dates.
Day 3
A city or a landscape
Choose Rijeka for culture, or a suitable Učka outing only if weather, daylight and your abilities allow. They are alternatives, not a double checklist.
Day 4
One more slow morning
Keep departure day local, with a café, harbour walk or a booked indoor visit.
Make it work for you
Book wellness access separately if it matters to your trip; a coastal hotel listing does not guarantee day-spa access.