5 - 6
FATMAP difficulty grade
The cliffs of Duino - a nature reserve that includes cliffs on the edge of the Karst plateau and the sea in front - form the ideal setting for Duino Castle.
The predominant rock here, both on the surface and underground, is limestone.
The fact that the landscape here is called Karst is due to the thousands of caves of different sizes that have formed in the limestone.
The "Terra Rossa" typical of the Karst (soil of bright red colour, created by washing out the limestone) allows the cultivation of particularly full-bodied, salty-mineral wines such as Terrano.
The local restaurants, agriturismo establishments and the simple "Buschenschenken" called "Osmizze" offer good refreshments for hikers.
The vegetation of the Karst, which can offer surprising and astonishing things to nature lovers at any time of the year, offers magical moments especially in autumn with its bright colours.