
The Star (Zvijezda)
A 1579 Renaissance star-fortress, the core of Karlovac.
Photo: Szeder László / CC BY-SA 4.0
Croatia's freshwater aquarium, devoted to its living rivers.
Karlovac is the city of four rivers, and Aquatika celebrates exactly that: Croatia's first freshwater aquarium leads you from fast mountain streams to slow lowland waters, through the habitats of native rivers. The tanks hold fish that usually stay invisible beneath the surface. A calm, cool place where you see Croatia from its waterside.
Perfect for rainy days and visits with kids.
A small next-step selection from the same city.

A 1579 Renaissance star-fortress, the core of Karlovac.
Photo: Szeder László / CC BY-SA 4.0

Tanks and true stories on Karlovac's former front line.
Photo: VitVit / CC BY-SA 4.0

The witches' mountain above Ogulin, a rocky head with huge views.
Photo: Zorro.mstitel01 / Public domain
Use the free map from home, then verify the discovery when you reach the place.