Lukács-árki-sziklaeresz is a small rock shelter tucked into the Visegrád Hills, hidden within the Lukács-árok valley inside Duna-Ipoly National Park. It's a rewarding find for hikers who enjoy exploring lesser-known corners of the mountains, away from the crowds that flock to the nearby and far more famous Rám gorge.

The valley has a wild, untamed character, with the trail running high above the streambed rather than through it. Along the path you'll spot thousands of glinting amphibole needles weathered out of the fine-grained andesite bedrock — a real treat for anyone with an interest in geology. The rock shelter itself was carved by lateral erosion of the stream, a process that continues to shape it today. Its floor is typically covered by a shallow layer of water, giving the space a damp, atmospheric feel that's especially striking in autumn and spring when water levels rise.

How to get there

• From Árpádvár castle — yellow stripe trail, running high above the valley floor, moderate difficulty; after about 1 km, where a distinct side valley joins from the right, descend to the streambed
• Continue along the stream past a smooth-walled drainage valley and a striking nearby rock overhang to reach Lukács-árki-sziklaeresz on the right bank of the stream

The shelter measures 5.2 meters wide, 1.2 meters high and 2.4 meters long — a modest but intriguing formation worth a short detour during a valley hike. It was first surveyed and documented in 1997 by researchers led by Imre Gönczöl.