World Record Free Diver Tanya Streeter Rides a Reef Ball to the sea floor.

Tanya Streeter breaks world record for freediving on an unballasted Reef Ball, 63 feet! WARNING: DO NOT TRY THIS YOURSELF, IT IS VERY DANGEROUS AND REQUIRES SPECIALIZED TRAINING. REEF BALLS FALL AT AN ACCELERATING RATE WHEN THEY HAVE A BOUY INSIDE AND THIS CAN DAMAGE THE EARS OF EVEN A WELL TRAINED FREEDIVER. ON THE OCCASION A REEF BALL BREAKS DURING DEPLOYMENT, THE BLADDER CAN RETURN TO THE SURFACE WITH EXTREME FORCE. AGAIN DO NOT ATTEMPT THIS.