Shumen Plateau Nature Park, Nature park with karst formations in Shumen, Bulgaria.

Shumen Plateau Nature Park covers 3,929.9 hectares on the highest plateau of the Danubian Plain, near the town of Shumen. The plateau is 12 km long from west to east and reaches 502 m at its highest point. Limestone, sandstone and marl have produced surface and underground karst forms, including about 60 caves; the two-storey Biserna Cave is around 2.6 km long.

The plateau contains remnants of ancient settlements with archaeological evidence showing continuous occupation from Thracian periods onward. The area was inhabited across centuries, from early cultures through the Second Bulgarian Kingdom.

The Monument to 1300 Years of Bulgaria, now called the Founders of the Bulgarian State Monument, stands at the park's edge above Shumen. Unveiled in 1981, it was designed by sculptors Krum Damyanov and Ivan Slavov, with a cubist composition of concrete figures and mosaic panels. The park also holds the medieval Shumen fortress and rock monasteries carved into the cliffs.

The park has multiple marked trails suitable for hiking and cycling across different skill levels. An information center provides maps and guided tours to help visitors explore the area effectively.

The area harbors numerous limestone caves, including Biserna Cave, which ranks among the longer caves in the region. These caves provide habitat for various bat species that form their colonies within the passages.