4. Geological wonders
The National Blue Trail showcases the most striking views of the Danube River. One of the best sights is the Danube Bend – a horseshoe meander formed millions of years ago due to volcanic activity.
While approaching the Danube Bend, you’ll also trek through the country’s most beautiful gorge at Dera Creek. This hollow is etched into limestone, with steep cliffs and charming bridges.
Discover an underground world at the Caves of Aggetelek, a UNESCO World Heritage Site. The trail passes the entrance of Baradla-Dominca, the most impressive cave in the whole system, decorated with wonderful water drip formations.
On section 6 of the trail, you’ll find the gorgeous milky green waters of Lake Balaton, best viewed when passing through Badacsony. This freshwater lake is less than one million years old and is the largest in central Europe. Near to Balaton is the thermal waters of Hévíz, another large lake considered to have healing properties - perfect for a post-hike bathe.