To enter the cave you have to climb the 315 m high Hůrka hill. Previously divers have installed a cable guidance system to lower their gear easily.
Diving in the cave is pleasant as the water temperatue is about 15-16°C all year round.
The first dives in the cave were done in the sixties. As the system got deeper and deeper people started wondering how far it would go and send in remotely operated vehicles (ROV) in search for the bottom of the well.
Krzysztof Starnawski is now pushing the limits even further.
During a 7.5 h dive, he reached an incredible depth of 217 m. The previous record was -200 m which he accomplished earlier this year. See the bottom of this post for the previous video report.
Below you can see a video report of a the Czech Cave Diving Expedition in the Hranická Propast system, where diver Starnawski went to a depth of 217 m. The film was shot with a GoPro camera, and GRALmarine light.
More info on the cave can be found at his webpage http://www.dualrebreather.com or at http://www.hranickapropast.cz