Nortek Signature ADCPs
partner with OST
XEOS Data Relay

Exploring the Deepest Freshwater Cave on Earth

UNEXMIN Georobotics has released a short film covering a mission to explore the Hranice Abyss, the deepest known freshwater cave on earth, and the setting of a new world record By Sarah Simpson / 28 Apr 2023

Discover World-Leading Technologies for Ocean Science

Discover cutting-edge solutions from leading global suppliers
SUPPLIER SPOTLIGHT
Exploring the Deepest Cave on Earth
Follow OS&T

UNEXMIN Georobotics Ltd. has released a short film covering the use of the UX1-Neo diving robot’s exploration of the Hranice Abyss, the deepest known freshwater cave on earth.

During the dives, the UX1-Neo explorer ROV (remotely operated vehicle) was used to continuously measure water parameters, create an accurate 3D image of the upper parts of the cave, and give Czech geologists and hydrogeologists a more precise knowledge of the cave’s construction and the debris accumulated there.

The cave’s deepest point was formerly known at 404m, reached by a research robot during a 2016 National Geographic mission which was exclusively aimed at breaking the depth record.

The international team consisting of UNEXMIN Georobotics and its partners in the UNEXUP EIT RawMaterials project, Amphora Diving Club, the Czech Caving Association, the Czech Speleological Society and Czech firefighters and special rescue unit, successfully achieved the original goals set, and set a new world record on August 1, 2022, when the diving robot dived to a depth of 450 m and increased the explored and mapped depth of the cave by 46 meters.

The film shows the construction and testing of the UX-1Neo explorer robot, as well as details of the world record-breaking dive:

Posted by Sarah Simpson Sarah is Head of Content at Ocean Science Technology and has become a respected voice in marine technology and autonomous marine systems. With a career rooted in research and journalism, Sarah joined in 2023 and specializes in translating the complex world of ocean robotics, subsea exploration, and autonomous vessels into compelling, accessible content. Connect