Climbing in Moravian Karst

The Moravian Karst is a protected karst landscape north of Brno known for roughly 1,100 caverns and gorges, and it provides the extraordinary setting for the film about Macocha abyss. The video follows Adam Ondra at a site whose most striking feature is a 138‑metre abyss, and the line at the bottom — an enormous arch — is the subject of the account titled First Free Climb of Underground Big Wall in Macocha.

The film emphasises constraints as much as moves: access is limited to a five‑day window each December and requires permission, the rock is cold, humid and wildly overhanging, and the protection on the route includes old bolts and rusty pegs. The climb is presented as a string of pitches worked in difficult, unusual conditions, and the piece gives space to the Czech climbers who found and prepped the line before Ondra. Practical details — the subterranean atmosphere, the five‑day window, and English subtitles available in the video settings — are all part of what makes this an uncommon big‑wall/sport hybrid on film.